TV Guide Oxygen Tuesday

Wendy Cobb was convicted of murder in the death of her firefighter husband, Michael Cobb, in an arson-related house fire while engaged in a bitter divorce.

Laura Greenberg's 40-year quest to uncover the motives of killer Doug Gretzler and disturbing new insights into one of America's most shocking killing sprees.

When developmentally challenged teenager makes a false confession to a detective friend, he unexpectedly finds himself convicted of murder.

When a couple is brutally murdered in their home, the suspected burglary gone wrong turns into an investigation into the couple's daughter and her boyfriend.

When a daughter fails to answer her family's calls one night, her relatives are led to believe their loved one is in a dangerous situation.

When 18-year-old Samantha Koenig goes missing, the FBI struggle to persuade serial killer and rapist Israel Keyes to tell them where his victims are located.

A bewitching killer terrorizes a small town through the seduction and murder of numerous victims before residents realize they have a killer in their midst.

A cop's determination to solve the mysterious death of a woman who fell in love with a jeopardy-winning colleague leads to the discovery of an overlooked clue.

A woman believes she has the man of her dreams until she sees an episode of "America's Most Wanted," which makes her realize she is with a notorious fugitive.

A widower is delighted to have found love again, but when someone takes his life in a film-inspired murder, investigators work to bring a killer to justice.

A woman falls in love with an ex-CIA agent who gives her the life she has been waiting for, but things take a turn when she discovers he has a dark secret.

A police officer finds love when a 911 dispatcher courts him with gifts and special attention, but his family gets suspicious when he suddenly dies.

A man realizes the woman he thought would be a perfect mother for his son is not who he thought she was when he discovers a mysterious message.

When a woman goes missing after marrying a charming doctor, her concerned coworkers contact the police, who must discern fact from fiction in a strange case.

Laura Greenberg's 40-year quest to uncover the motives of killer Doug Gretzler and disturbing new insights into one of America's most shocking killing sprees.

When a young female college student disappears without explanation, investigators manage to find a blood spatter in her boyfriend's bedroom.

Law enforcement officials attempt to track down a serial rapist in Texas, and time is of the essence as the criminal's violence continues to escalate.

A distinctive button provides police detectives with a key clue in their investigation into the murder of a woman who was stabbed more than 30 times.

When a woman goes missing after attending her church service, authorities begin searching for the driver of a van identified by eye-witnesses.

The search for a missing 9-year-old girl goes on for weeks until a psychic's vision leads law enforcement officials to a field containing her body.

Detectives are able to confirm that what appeared to be a casual encounter was in fact a forced abduction by analyzing digitally-enhanced security footage.

Law enforcement officials investigate a case concerning a woman who survived a series of stab wounds inflicted during a sexual assault.

After a Kentucky businessman is murdered in the safety of his own home, police are left to question whether the brutal crime could be blamed on a home intruder.

A woman falls to her death while vacationing with her husband and two sons, but investigators begin to suspect that the event was not an accident.

A missing person case involving a woman who disappeared after attending a night out on the town ultimately turns into a homicide case.

A woman who was widowed after surviving the brutal attack that killed her husband withdraws her testimony after identifying the killer.

A high-priced call girl is murdered near the outer border of Columbia, South Carolina, and the only evidence they have to go on is a six-pack of beer.

Authorities manage to apprehend a group of people believed to be responsible for a series of church bombings in an Eastern Illinois community.

A criminal's unique occupational habit gives investigators the important clue they need to apprehend him in relation to the death of a college student.

A man makes a chilling confession: he's shot his wife, but what first appears to be a straightforward homicide soon unravels into something far more complex.

Rebecca Keller reveals chilling details about the night she stabbed her then-girlfriend's mother more than 70 times; she opens up about her regrets and more.

When a husband unexpectedly vanishes without a trace for eight years, investigators are baffled until they uncover a secret involving the man's work life.

When a husband unexpectedly vanishes without a trace for eight years, investigators are baffled until they uncover a secret involving the man's work life.

After a woman reports a prowler, police find her husband, an Olympic bronze medalist, dead, so they must determine if it was murder or an act of self-defense.