A man snaps and goes on killing spree in Brooklyn, New York. Cops track his trail of victims for more than 24 hours before they finally hunt him down across the city. S1 Ep73
A triple homicide rocks a community and destroys a family. It doesn't take police long to piece together elements of the crime, which point back to a perpetrator close to home. S1 Ep72
Cops investigate the apparent carjacking of a husband and wife, only to discover that the ambush was a ruse, carried out by cousins, to kill the husband for insurance money. S1 Ep71
Law enforcement investigates a series of unsolved murders over the course of a year, only to realise all the seemingly isolated incidents point back to a single FBI informant. S1 Ep70
The murder of a man inside his home sets off a chain reaction of murder, conspiracy, and furious cover ups, which ultimately point back to a mastermind who's in it for the money. S1 Ep69
The disappearance of a wealthy retiree quickly turns from a missing person's case to a homicide investigation focused around an unexpected perpetrator. S1 Ep68
A predator targets men at gay bars, leaving a trail of dead bodies. Cops struggle to play catch up, until the perpetrator leaves behind a key piece of evidence at a crime scene. S1 Ep67
A serial killer criss-crosses California, leaving a trail of dead bodies, eventually showing up at a local Sheriff's Department with a victim's body part in his pocket. S1 Ep66
A woman's dream leads cops to the body of a dead woman hidden in bushes on a beach. Investigators soon find out the victim had been marked for death by someone she used to trust. S1 Ep65
The search for a local businesswoman who vanished quickly morphs into a homicide investigation after police discover microscopic evidence inside the woman's home and car. S1 Ep63
A killer lays siege to upstate New York, targeting women. Cops investigates for nearly two years, until they find out the perpetrator has been living amongst their dead bodies... S1 Ep62
When a chef's wife goes missing, it appears she voluntarily walked away from the life she knew. Yet, after much investigation, detectives uncover she was the victim of a homicide. S1 Ep83
A heartbroken millionaire marries a much younger woman who turns out to be Mrs. Wrong. The end result is a shotgun blast to the stomach and a lethal dose of poison. S1 Ep82
When a California high teacher suddenly dies, it appears his death was due to natural causes. But once law enforcement look into his widow, they uncover her treacherous past. S1 Ep81
The murder of a woman in Montana sends cops on the hunt for a killer. Using a network of informants and good old fashioned methods, authorities track down the man behind the crime. S1 Ep80
A homicide at the intersection of a young couple who can't get out from underneath a mother's overbearing eye. Cops unravel a web of twisted lies, uncovering the shocking truth. S1 Ep79
A mother disappears, leaving behind three kids and a husband she planned to divorce. It's determined she's been the victim of a homicide, taking two decades to unravel the mystery. S1 Ep78
The discovery of a burned body on the side of the road kickstarts a furious race to find a killer. Tt takes local police less than 72 hours to identify the perpetrator. S1 Ep77
A bloodbath inside a Beverly Hills mansion sparks a high publicized investigation. After months working the case, law enforcement uncovers the secrets of a family deep in turmoil. S1 Ep76
When a husband and his pregnant wife are shot, police are lead to believe it's a random attack. But after weeks of eliminating false suspects, cops lock in on the real perpetrator. S1 Ep59
When a rabbi's wife is murdered inside the family's suburban home, it looks like a robbery gone wrong. After years of chasing down leads, police finally catch a break. S1 Ep58
A gunman attempts to take out an entire family one by one as they enter their house. It takes law enforcement nearly two years to crack the code behind the murders. S1 Ep57
A mentally unstable man goes on a two-hour shooting spree, killing one man and wounding two others. Cops have no suspects, until the shooter resurfaces. S1 Ep56
A destitute criminal terrorizes central Florida, robbing middle aged men, executing them and disposing of their dead bodies in random wooded areas. S1 Ep55
A street preacher and his teenage protÂegÂe run an Internet scam to rob unsuspecting men, steal their identities, then dump their dead bodies in the woods. S1 Ep54
When a woman dies, it initially appears as though she suffered an accidental fall. Through the persistence of family and friends, law enforcement discover a different story. S1 Ep53
A self-taught serial killer criss-crosses the country at random, targeting victims of opportunity and murdering them with pre-stashed weapons and tools he calls "kill kits". S1 Ep51
A landlord offers free rent to a female "enforcer" if she'll take care of his troublesome tenants. The only problem is she ends up murdering a tenant and the landlord himself. S1 Ep50
When a friendly woman is murdered inside her home, cops suspect her killer is an ex-lover. But after two years and a series of informants, police discover the real perpetrators. S1 Ep49
A boy from a lawless home goes on a 24-hour shooting spree, killing five people from two families in two different states. The race is on to capture him before he can kill again. S1 Ep48
A serial killer lays siege to Jacksonville, Florida, strangling young African-American women to death then callously discarding of their bodies. S1 Ep47
A loving father vanishes without a trace, setting off a missing person's investigation. Cops follow the trail of clues and discover that their missing person isn't missing at all. S1 Ep46
A state employee wreaks havoc on Southwestern New Mexico, abducting women and keeping them captive in his homemade torture chamber, the toy box. S1 Ep45
A scorned mistress exacts the ultimate revenge, playing the victim when the heat comes. But no level of acting will allow her to escape the truth: the murder was caught on camera. S1 Ep43
A beautiful brunette is killed and left inside a burned out car. At first, it seems as though the perpetrators have gotten away with it. But can the cops track them down? S1 Ep42
Terror strikes as severed body parts start showing up across the English countryside. Police must piece together the human jigsaw puzzle in order to track down the perpetrator. S1 Ep41
For more than a decade, a genius doctor with a homicidal hobby gets away with murder at hospitals across two continents. Cops race to track him down before he kills again. S1 Ep40
Two prominent doctors, two towns apart, entangled in a rivalry for the same woman. When one loses, he exacts the ultimate revenge, hiring a friend to take out the opposition. S1 Ep39
A wayward ex-marine drifts through Oregon, off everyone's radar. He's homeless, committing petty crimes here and there, until one day he spots Amyjane and gets the urge to kill. S1 Ep38
A father, husband and businessman by day transforms into a sadomasochistic by night, luring unsuspecting women with a web of lies to trap them in a world of sex slavery and murder. S1 Ep37
An unemployed teen mom and her husband concoct a plan to kill an innocent man they meet on Craigslist. The end result is a stabbing that sends shockwaves through the community. S1 Ep36
The murder of a doctor's wife sets off a huge manhunt. When Law enforcement locate the suspected killer they find out he has a history of not only violence but also cross-dressing. S1 Ep35
A former army medic devises a plan to kidnap women, impregnate them and imprison them. Two women lose their lives and four experience the hell of this house of horrors. S1 Ep34
A town in disbelief when a real estate agent becomes the prime suspect in his wife's murder. The investigation uncovers a sordid tale of double lives and a murder-for-hire scheme. S1 Ep33
A serial killer with a history of rape terrorizes Florida's red light district. He gets away with murder for months, only to be brought to justice by the one victim he let go. S1 Ep32
A drug abuser kidnaps then kills an innocent coed. Investigators spend months attempting to solve what they believe is a missing person case until the perpetrator strikes again. S1 Ep31
The disappearance of a decorated military man stumps law enforcement. But once investigators dig into his home life, they uncover a vicious murder plot involving his veterinarian wife. S1 Ep30