Nearly 35 years after Jonelle Matthews' disappearance, a chilling discovery reignites the hunt for her killer, whose secrets are finally unmasked; an unlikely hero comes forward and a historic trial forces a reckoning.

When police recover the submerged car of missing man, they find no body; the investigation that follows uncovers a deadly obsession and the motive for murder.

Debra Newell believes she has found Mr. Right, but her daughters sense there's something wrong with John Meehan; they start digging into his past and find out he's a dangerous con man; their revelations may come too late.

When a young mother disappears after leaving her infant in the care of her local pastor and his wife, Florida detectives search for her for five years, uncovering a web of secrets and lies.

When one woman breaks off her relationship with a boyfriend she says abused and stalked her, he moves on to something even worse.

A beautiful blonde seduces various lovers in a small town, causing havoc; it isn't until an unlikely witness steps forward and another tragic death occurs that the village becomes aware there is a cunning and charming killer in their midst.

When a Jeopardy-winning colleague romances Linda Kinkade, it seems she's won the jackpot until she dies mysteriously; it takes a wily cold-case cop to uncover an overlooked clue to put a killer behind bars.

Single mom Margie Danielsen falls in love with a handsome chef, but when an episode of "America's Most Wanted" airs, she realizes she may be far too close to a fugitive and must risk her life to bring him to justice.

When a dance instructor waltzes into widower Alan Helmick's life, he is elated until someone inspired by a movie puts an end to his dreams; It will take a savvy team of investigators to bring a killer to justice.

A yearslong investigation into the killer of Johnia Berry, who is stabbed more than 22 times in her Knoxville, Tenn., bedroom while her male roommate escapes.

Questions are raised when a teenager awakens to discover her father, a popular high school drama teacher, stabbed to death in his bedroom.

In an upscale high-rise in Chicago, a successful businesswoman is murdered as her boyfriend sleeps beside her; investigators point a finger at the boyfriend, but an exhaustive investigation uncovers the surprising architect of her murder.

When police investigate the murder of a Private Investigator the trail leads them to a wealthy woman who had affairs with both a father and his son.

A young mother's passionate affair with an old boyfriend ignites suspicion when someone close to both of them is murdered.

When a young military wife goes missing from a Marine base, investigators suspect a forbidden love affair and a secret pregnancy may have driven someone to murder.

The lifelong friendship of two men is threatened when they both love the same woman, leading investigators to suspect murder when one of them disappears.

After a small town dentist is stabbed to death, investigators discover a web of extra-marital affairs and infidelity, and the odd behavior of an unexpected suspect helps crack the case.

Emergency dispatch recieved a call from a man who said his girlfriend shot and killed herself. But the wound was not self-inflicted.

Investigators piece together evidence found at the scene of a Native American woman's murder; the tyre tracks and shoe impressions could lead them to the killer.

Experts seek answers to a young businesswoman's death just before she was to testify in a criminal trial.

An anonymous caller reports the rape and murder of a dry cleaner employee; two eyewitnesses tell two similar but not identical stories.

Woman disappears from grocery store parking lot in Boulder, Colo.; investigators find extraordinary clues in a pair of bloody gloves, unique tire tracks, and ordinary grass and pine needles.

Two women are murdered in the same town and police fear a serial killer is on the loose, further investigation finds that they were both close to the same man.

A teenager goes missing after an evening of horseback riding; her body is found a month later, three miles from her home; the killer unknowingly leaves a trace of evidence behind, tiny but unmistakable clues that pointed to him and him alone.

When a popular disc jockey is found murdered in a community garden, police swing into action; a sniffer dog and a blood spatter expert led police to the killer and he'd been much closer than they realize.

Three seemingly unrelated deaths proved to be serial murders; the killer had been careful, he uses poison which had no taste or odour, fortunately for investigators, it also has a unique chemical signature.

A man is murdered in his sleep but no fingerprints are anywhere to be found; a shoe impression outside could lead to the killer.

With very little else to go on, investigators find that a show impression puts them on the right track to finding a killer in Lansing, Mich.

The owner of a restaurant is killed; investigators uncover tales of debt and deceit, but the case remains open, until one detective gets inspired by an earlier episode of "Forensic Files," and looks for clues in an empty holster.

A man becomes the prime suspect in his wife's death after forensic science raises questions about her apparent suicide.

Investigators on both sides of the Atlantic seek links between three homicides that look like professional executions.

Kelly and Johnny Bonds answer the call of a grieving mother, whose 19-year-old son drowned while camping with friends; despite the medical examiner ruling it an accident, some suspect foul play.

Kelly and Abbey Abbondandolo investigate the cold-blooded murder of a fun-loving Texas country boy shot in the back of his head; it could the result of a love triangle gone tragically wrong.

The latest in the case of a missing young Oregon woman whose disappearance led to an intense manhunt after a suspect embarked on a two-state crime spree.

The latest in the case of a missing young Oregon woman whose disappearance led to an intense manhunt after a suspect embarked on a two-state crime spree.

Heidy and Conrad Truman are an enviable couple with a bright future; then, one fateful night, Heidy is found dead of a gunshot wound to the head; in the aftermath of her death, accusatory fingers are pointed at someone who may very well be innocent.

When soon-to-be college freshman Heather Maples is discovered murdered in her own bed, investigators discover a remarkable clue preserved at the scene.

Surveillance footage reveals a mysterious figure tracking 18-year-old Kelsey Smith's movements when she goes shopping for a present for her boyfriend but never returns home.

After asking to drop off a book off at a friend's house, 15-year-old Danielle Locklear never returns home, but a cryptic clue leads investigators to a secluded creek.

While 24-year-old Willard Grandstaff toils away at his convenience store job, he dreams of what the future holds; on Sept. 27, 2004, his standard overnight shift becomes his last.

A graduation party ends with a man's death and leaves two teenagers facing a long fight for justice.

The fire breaks out before dawn; after the smoke clears, a mother of two young children is found dead; it's the tragic end to a life that held so much promise, but for investigators, it is just the beginning.

Kevin and Morgan Mengel are happy at first, but when the marriage goes bad, he goes missing; police wonder if he simply left, but a family's relentless pursuit leads to a stunning confrontation and, eventually, the truth.

A family mourns the loss of a young mother in a house fire; authorities rule it an accident; years later, there is another accident and second loved one gone; investigating if this just a string of bad luck or the work of a calculating killer.

On Nantucket Island, Mass., a couple's connection is instantaneous, but their summer romance takes a tragic turn; it seems like an open-and-shut case, but there's a surprise in store.

A man makes a frantic call to 911 after finding his wife dead in a bathtub, but the couple's daughters lead police to investigate their father.

A story of obsession that boils over into a brutal crime which takes years to bring to trial and the verdict is far from the end of the case.

Aasha Davis moves to Hollywood with big dreams; her sister Lesley follows for support; Lesley goes missing and Aasha is desperate to find her; in a town built on deception, the police come up with a high-stakes plan to smoke out their suspect.

It is just before Halloween; Joel Lovelien and his fiancé head to a local bar packed with people in costume; Joel steps outside and walks into a troubling mystery.

Keith Reed is a highly-regarded school superintendent; when he doesn't show up at an out-of-town conference, it sets off alarm bells; investigators take a hard look at his love life for clues and make a startling discovery.

The missing-persons case of 12-year-old Jonelle Matthews in Colorado remains a mystery for more than three decades until detectives narrow in on a suspect whose bizarre behavior after her disappearance hints at something much more sinister.

Kelli Bordeaux is just starting what she hopes to be a long career in the military, but fate has other plans; when she vanishes, friends and family launch a frantic search, but it is a stranger hell-bent on justice who uncovers the ugly truth.

Churchgoing mom shot at point-blank range in her garage; saving her would take a miracle and investigators want to know if this crime was random or if someone wanted her dead.

A 21-year-old woman disappears after a late-night party, then her body is discovered years later in a nearby orange grove.

Kelly Siegler and Aaron Sam look into the disappearance of a father who tragically vanished just before he could move back home to his family; they ask if a financial windfall could have had something to do with the man's disappearance.

After a 15-year-old girl disappears, investigators discover a creek where the local teenagers hang out that may hold the answer to her disappearance.

After a 15-year-old girl disappears, investigators discover a creek where the local teenagers hang out that may hold the answer to her disappearance.

Friends of accused murderer Robert Durst talk about his recent arrest in New Orleans and his whereabouts over the past 30 years.

The untold true story of NFL superstar Aaron Hernandez from the viewpoint of those who knew him best strips away the layers to answer the many questions left behind after Hernandez's tragic death.

The untold true story of NFL superstar Aaron Hernandez from the viewpoint of those who knew him best strips away the layers to answer the many questions left behind after Hernandez's tragic death.

Keith Morrison recalls how a deadly high-speed chase in Montana led to a mystery, where a missionary turned into a monster and committed one of the state's most notorious crimes.

A 911 call reporting an apartment break-in holds the key to solving the mysterious murder of a young graduate student named Katie Sepich; her case contained many twists, and her family's grit still astonishes Josh Mankiewicz.

When Tina Sandoval disappears, her parents and loved ones spend years searching for her; Dennis Murphy takes a fresh look at the secret Tina kept and at the demon who forced her loved ones to make an agonizing decision.

The survivor of a horrible attack is convinced the police on the case have the wrong suspect. Keith Morrison looks back on his heart-wrenching interview with the victim and her courageous quest to uncover the truth.

After Todd Chance is murdered, police follow a trail of video evidence to track down their suspect; Andrea Canning recalls a particularly revealing interview, including an eye-popping detail.

When Josh Mankiewicz gets asked about his most memorable stories, the name Dayna Herroz comes to mind; after her daughter and 10-month-old grandson are murdered, her quest for justice ends with a twist in a San Diego courtroom.

A Florida father is determined to find out what happened to his daughter after her fatal fall from a penthouse apartment; Dennis Murphy revisits the dramatic events as this dad confronts overwhelming obstacles to learn the truth.

When three people are found dead on the same day in a Kentucky town, investigators know that it isn't a coincidence; years pass before an arrest; Keith Morrison reflects on the triple murder that shook a tight-knit community to its core.

Kelly Siegler and Johnny Bonds investigate the twisted murder of a new grandmother who was strangled and set on fire in an abandoned school bus; things get personal when the primary suspects turn out to be Kelly's neighbors.

Kelly and Steve Spingola investigate the brutal slaying of an Oklahoma teenager whose night of cruising and partying turned deadly; a scandalous town rumor could have led to her death; the team searches for justice 22 years later.

When a young woman is found dead in a field on the outskirts of Green Bay, Wis., a fitness tracker helps detectives solve the mystery.

When a young woman is found dead in a field on the outskirts of Green Bay, Wis., a fitness tracker helps detectives solve the mystery.

The investigation into the death of a Florida firefighter reveals a tale of secrets, lies and infidelity.

Kelly and Steve head into Louisiana to work with the Concordia Parish Sheriff's Office and investigate the 2016 homicide of a 26-year-old whose body was found on the banks of the bayou.

Kelly and Abbey head to Colorado to help the Prowers County Sheriff's Office investigate the 1991 homicide of a beloved elderly couple who were brutally killed while working at their local VFW Hall.

Kelly and Tonya head to Wyoming to work with Carbon County Law Enforcement to look into the mysterious deaths of two women years apart, but connected by the same circle of friends.

In part two of their investigation, the Cold Justice team continues to investigate three mysterious deaths in Wyoming, hoping they will be able to finally give answers to all the families involved.

When a loving father is gunned down in upstate New York, a hunt for the gunman crosses state lines; as several suspects are brought in, investigators must determine who's telling the truth to reveal the mastermind.

A Texas woman discovers her husband's brutally stabbed body in their ransacked home and police suspect he was the victim of a robbery gone wrong, but the investigation reveals a torrid love affair.

After what appears to be a fatal road rage incident, authorities in Clifton, Ariz., follow a trail of recovered text messages that suggest this was no random attack, but instead a cold-blooded murder.

A prominent private investigator is reported missing after he fails to return from a business trip; when the case goes cold, a former Russian spy assists the FBI in a sting operation to uncover the truth behind his disappearance.

When human remains are discovered by road workers in West Virginia, a decades-old missing person's case is reopened and investigators are left to unravel an extensive history of scams and violence, leading them to a malicious con-woman.

A family demands answers when the body of an Arizona woman is discovered in a remote area of Texas; evidence left behind leads investigators to unravel a web of deceit until a shocking confession reveals the true mastermind.

When Texas authorities learn of a murder-for-hire plot against an acclaimed boxer, they must devise an undercover sting operation and race against the clock to save his life and expose the remorseless mastermind.

After a demolition derby driver is found gunned down in his California auto shop, police uncover a dangerous love match that leads one woman to commit the ultimate crime.

After responding to a frantic 911 call from a care-facility nurse who has discovered her patient with severe stab wounds and clinging to life, police receive an unexpected tip that reveals a group of killers inspired by greed.

When a beloved father and driven entrepreneur is fatally shot at a busy California intersection, authorities discover a recent business venture that led one partnership to turn deadly.

After the body of a young San Antonio man is found dumped in a local cemetery, investigators retrace the victim's steps to untangle a web of deceit that begins with a heartless woman.

Coastal Texas is thrown into shock when a beloved retiree is found executed in his home; an unlikely witness comes forward and leads investigators to uncover a malicious murder plot.

Rumors spread through a small town in Indiana after a well-known resident is found dead in his home after hosting a party; authorities investigate accusations from the partygoers to expose how a toxic love triangle turned deadly.

When an Iowa mother and her newborn son are reported missing, police race against time to rescue the pair and stop a maniacal woman from enacting a dangerous plan.

When a loving father is shot to death in front of his home by a masked gunman on Halloween night, Los Angeles Police must follow the evidence to determine whether this was a case of holiday hijinks gone awry or something far more sinister.

Kelly works with the Idaho Falls Police Department to help investigate the 2007 homicide of a young mother; when her body is discovered almost three years later outside the city, it leaves a family searching for her killer.

Kelly and Johnny Bonds work with the Jasper County Sheriff's Department to take on the 2012 disappearance of a 56-year-old mother; the investigation uncovers family drama, rumors of doomsday prepping and a daughter waiting for her mother to return.

Years after a Montana man is found dead, his son dreads what he'll find when he opens up the box of case files, giving him insight into what really happened.

Years after a Montana man is found dead, his son dreads what he'll find when he opens up the box of case files, giving him insight into what really happened.

When a woman returns two days after being reported abducted, authorities believe it's a hoax until a similar crime forces them to take another look.

A hairdresser-turned-detective uncovers the truth behind the murder of a teenage girl at a scenic spot on a Utah river.

Police suspect a murder-for-hire plot when a realtor is attacked and left for dead at a home showing and begin investigating his family and business partners.

A mystery in paradise unfolds when Sarm Heslop vanishes from her boyfriend's yacht; in a case that made international headlines, Andrea Canning recounts her memorable journey searching for a particular person of interest.

The fatal shooting of NBA star and hometown hero Lorenzen Wright sends shockwaves through the city of Memphis, Tenn.; Andrea Canning takes a new look at the diabolical plot behind Wright's murder and his family's tireless fight for justice.

Kelly and Steve Spingola partner once again to work with the Potter County Sheriff's Department in Texas in investigating the brutal murder of a doting mother of four; DNA testing could help them find the murderer.

Young mother Heyzel Obando is shot to death in her home, and it will take old-school interrogation skills to catch the killer and bring justice to her grieving mother.

In 1988, Cindi Smith's body was located at a cemetery after a night at a local bar and the patrons could hold the key to identifying her killer and getting her family justice.

In 2012, Brian Shookman, a young father who traveled to the area to attend a family reunion, vanished and as the list of suspects grows, the team seeks to uncover the truth.

In 1993 a man was allegedly shot and buried by a group of dangerous friends and the detectives will need to pit them against each other to break the case and bring justice to his family.

In 2000, a young mother was abducted from a parking lot and executed in a nearby field; state-of-the-art DNA testing may provide the answer.

Kelly and her team investigate the murder of a college student killed in her bedroom while packing for a trip to visit her parents for Thanksgiving.

For the 100th case, the 2007 murder of a popular college student who was stabbed to death in her bed; help is needed from forensic pathologist, digital forensics expert and DNA lab to solve the case.

The Cold Justice team continues its investigation into the murder of a popular 18-year-old college student.

This feature documentary focuses its lens on a horrific crime in a bucolic college town after four University of Idaho coeds are brutally stabbed to death and a brilliant criminology student, Bryan Kohberger, stands accused of their murders. As prosecutors and defense attorneys sift through the evidence, the motive remains a baffling mystery.

A 15-year-old missing persons case is reinstated when an anonymous tipster leads police to unearth a grisly murder; as witnesses come forward, North Carolina investigators must try to piece together the crime and bring the killer to justice.

A hardworking family man is shot to death in front of his wife during a morning walk with their dog; as police determine if the attack was random or targeted, they uncover a web of deceit spanning across state lines.

This feature documentary focuses its lens on a horrific crime in a bucolic college town after four University of Idaho coeds are brutally stabbed to death and a brilliant criminology student, Bryan Kohberger, stands accused of their murders. As prosecutors and defense attorneys sift through the evidence, the motive remains a baffling mystery.

After a college student is viciously murdered and her apartment set ablaze, police untangle a web of relationships to find a killer who's dangerously close to home.

A woman is found murdered after her close friend hears her screaming on the phone; the mysterious death of her boyfriend's twin brother leads investigators to a suspect.

A woman is found murdered after her close friend hears her screaming on the phone; the mysterious death of her boyfriend's twin brother leads investigators to a suspect.

An in-depth interview with Charles Manson's former parole officer; rarely seen video of Manson; interviews with victims' family members, and others close to the case.

A detective comes face to face with a serial killer when she promises to get justice for the mother of a victim whose body turns up at an Anaheim trash facility.

Two suspects are arrested for the murder of a millionaire 15 years after the crime was committed.

This feature documentary focuses its lens on a horrific crime in a bucolic college town after four University of Idaho coeds are brutally stabbed to death and a brilliant criminology student, Bryan Kohberger, stands accused of their murders. As prosecutors and defense attorneys sift through the evidence, the motive remains a baffling mystery.

Halloween turns into a real-life horror movie when a single mother is gunned down on her way home from trick-or-treating by a costumed killer in Florida; detectives uncover an unexpected witness that helps reveal the monster behind the mask.

When two men disappear in the quiet community of Clemmons, N.C., rumors swirl about a devil-worshipping couple and their house of horrors; an investigation leads police to discover there may be more than secrets buried in the backyard.

When a beloved woman goes missing in Everett, Wash., police find that her apartment was the scene of a violent attack; unable to find her, investigators are led to a coven of modern-day wiccans and one witness who reveals the horrifying truth.

Updates to an episode with new details and interviews; the son of a wealthy psychologist finds his father murdered and points the finger at his mother; investigators delve into the marriage, revealing darkness hidden behind a facade.

Missouri police are called to the home of a prominent judge's daughter to find her husband dead on the couch; while the crime scene suggests a break-in, investigators uncover evidence of a scandalous murder plot driven by greed.

When a beloved Florida mother is found brutally shot to death and her newborn missing, investigators race against the clock to track down a mysterious visitor whose motives prove sinister.

Serenity in the Montana mountains is shattered when a man is shot to death on his neighbor's land; detectives learn of an escalating dispute over trail access and reenact the shooting to discover if claims of self-defense match the evidence.

A feud between neighbors in the quiet suburb of New Brighton, Minn., turns deadly when one man's passion for local wildlife drives his neighbor to snap; investigators must determine whether the shooter acted out of self-defense or bitter revenge.

True stories of women who lose control and commit murder; featuring interviews with friends and family members of the accused and victims, law-enforcement officials, attorneys and other people with first-hand knowledge of the cases.

When an eight-year feud between neighbors in Santa Clarita, Calif., ends in a violent confrontation that leaves one man dead, detectives investigate if the shooting was a tragic case of mistaken identity or a calculated murder plot.

A beloved pastor is fatally shot in his sleep by a mysterious intruder; investigators uncover a scandalous lifestyle and sordid family secrets that send shock waves through a small Oklahoma community.

True stories of women who lose control and commit murder; featuring interviews with friends and family members of the accused and victims, law-enforcement officials, attorneys and other people with first-hand knowledge of the cases.

When a young mother goes missing in rural Ohio, it's a race against time to uncover the truth behind her disappearance; as evidence begins pointing to foul play, investigators fear she may have been the victim of a toxic family dynamic.

After a hardworking family man is gunned down in his driveway, a domestic dispute leads investigators to an unlikely culprit and unravels a history of violence, lies and betrayal.

A loving father and husband of an aspiring gospel singer is found shot to death in the passenger seat of his car; when investigators discover a previous attempt on his life, they expose a group of killers driven by greed.

When an Indiana collector of race car memorabilia is found shot in broad daylight with no eyewitnesses, detectives follow the evidence to reveal the true mastermind behind this twisted murder plot.

When an officer discovers a man dumping bags of more than 60 body parts into the Passaic River in East Rutherford, N.J., investigators work to identify the victim and corroborate the chilling story of a confessed killer.

A man steals millions of dollars by conning numerous women and businesses over 25 years; one woman brings together a group of his victims to hold him accountable and make him face justice.

A man steals millions of dollars by conning numerous women and businesses over 25 years; one woman brings together a group of his victims to hold him accountable and make him face justice.

A group of adventurous Americans thought they had stumbled into paradise on the warm waters of a tropical hideaway.

When a young Missouri couple is found shot to death on their front porch, the victims' past quickly reveals several suspects close to home; investigators press for a confession from one of the co-conspirators to expose a master manipulator.

Decades pass before investigators utilize advancing technology to reveal the clown killer who shot a mother in Florida.

At a VA hospital in West Virginia, a string of severe hypoglycemic events results in the deaths of several patients; after an investigation ensues, a pattern reveals the work of a serial killer lurking within the halls of the hospital.

A local Washington man's life is at stake when detectives are alerted to a murder for hire plot against him; they set up a sting operation to catch the ruthless mastermind before it's too late.

After a member of the Indiana cycling community is found mysteriously murdered, medical examiners discover the victim ingested potentially lethal amounts of poisonous mushrooms; Police must work to uncover the culprit behind this bizarre crime.

When Fort Lauderdale, Fla., police respond to reports of a deceased male who fell down the stairs, their investigation turns to a homicide case; with multiple witnesses and an attorney on scene, investigators must dig deep to get to the truth.

After returning from several tours of duty abroad, a soldier is found beaten to death on his own army base in Hinesville, Ga; Investigators soon discover the greatest danger may have been waiting for him closer to home.

Police believe that a dependable Florida man left town of his own volition when he fails to show up for work, but as years go by, town rumors lead police to unearth a gruesome crime.

After a loving father is found dead in the bedroom of his Oklahoma home by his ex-wife, Broken Arrow police must unpack a complex family dynamic and a loyalty based on greed in order to get answers.

Crosby, Tenn., is shocked when a beloved father and pastor is found dead outside a ransacked house; police question if this was a robbery gone wrong until an unexpected witness comes forward to reveal the disturbing truth.

California police receive a bizarre 911 call from an attorney who informs them of a death but won't share more details; an eerie feeling of déjà vu covers the investigation when detectives learn the details of a 30-year-old case in the same home.

After the bloody slaying of two men in rural South Carolina, a witness comes forward with information implicating her own family, leaving police to uncover if blood really is thicker than water.

When a prominent Florida optometrist is bludgeoned to death in his home, Melbourne police must investigate claims of self-defense; the evidence trail leads them to a young witness who reveals a wicked murder plot.

When a father is found shot to death in his country home, the family immediately accuses the victim's on-again/off-again ex-spouse; however, evidence soon suggests there might be more players to blame than simply a woman scorned.

After a welfare check is called in on a 53-year-old Texas man, police soon discover him shot to death in a Louisiana swamp that's 450 miles from his home; detectives devise a sting operation to track down his killer and reveal a vengeful murder plot.

When a local EMT dies in a suspicious house fire in Mississippi, investigators work for two years to expose the mastermind behind her death and uncover a greedy scheme from an unlikely source.

When a renowned Missouri snake breeder is discovered in a pool of blood, investigators believe his death was caused by one of his snakes; however, shocking evidence is found on scene, launching a homicide investigation that unveils a sinister plot.

After three Atlanta men are gunned down in the span of three days, detectives connect the murders to two exotic dancers; knowing only their stage names, investigators race to find the women and uncover the motive behind this devastating crime spree.

After skeletal remains are uncovered at a makeshift dumpsite in Fort Sumner, N.M., investigators are left to untangle a complicated family history that reveals the callous truth behind what happened.

This feature documentary focuses its lens on a horrific crime in a bucolic college town after four University of Idaho coeds are brutally stabbed to death and a brilliant criminology student, Bryan Kohberger, stands accused of their murders. As prosecutors and defense attorneys sift through the evidence, the motive remains a baffling mystery.

The mysterious and near fatal shooting of an America security analyst outside Washington, DC may be linked to the murder of a Russian agent in London.

After teenagers Rachel Shoaf and Sheila Eddy are convicted of murdering their 16-year-old friend, Skylar Neese, Skylar's parents discuss the night she disappeared; Rachel Shoaf's therapist, Patricia Bailey, shares her thoughts.

A verdict is given in the case of a woman found murdered just three months after being married.

A retired couple are found beaten to death in their country club estate, but detectives soon discover that what happens in Vegas doesn't always stay there as they hunt down this monstrous killer.

A young woman is stabbed to death and suspects include a warlock and a rumored Wiccan lover; the case goes unsolved for years, until a triple homicide leads investigators to a dark obsession that costs four people their lives.

A local beauty queen is found dead in a lake; as her small town grieves, law enforcement finds itself on a 20-plus year investigation that leads to a killer who was hiding in plain sight.

An apartment fire proves to be arson set to cover up the murder of a young woman, but the discovery of a secret double life and unique evidence leads detectives to the killer.

A witness comes face to face with the killer of a small-town beautician, but despite having an eyewitness, it would take years and a surprise tip to lead detectives to who strangled a beloved member of the community.

When a 4-year-old finds his great-grandparents melted, he runs for help, launching an investigation into their double murder; greed takes center stage as detectives unwind this heart-wrenching case that leads them to a suspect no one saw coming.

Kelly and Abbey Abbondandolo investigate the cold-blooded killing of a tow truck business owner, and uncover a twisted world of alleged abuse, infidelity, and a possible murder-for-hire plot.

Kelly and Steve Spingola try to solve the mysterious murder of a father beaten and shot to death in his home with his 6-year-old daughter asleep nearby; the key to identifying his killer may lie in the secret audio recordings found in his attic.

Kelly and Tonya Rider investigate the shocking murder of a 91-year-old grandmother who was stabbed nearly 40 times in her bed; new DNA technology may help identify her killer and reveal a tragic family secret.

Kelly and Steve Spingola investigate the strange case of a man who appeared to have died from natural causes; when his cremation revealed a bullet in his body, his death became a murder investigation.

Kelly and Tonya help police keep their promise to a grieving mother to solve her daughter's murder; an examination of the victim's cell phone data brings a horrifying tale of obsession and brutality to light.

The team tackles the mysterious 1986 murder of a young Native American mother whose skull was found in the woods; her infant daughter, now grown, is desperate to know if her father was involved.