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Twenty-seven-year-old Egypt Covington is found murdered in her home; investigators in Michigan quickly identify a person of interest, but years pass without an arrest.

The investigation into a deadly home invasion involving a local business owner takes a turn when an unlikely witness comes forward; new details emerge from exclusive interviews and never-before-seen police interviews.

After a plastic surgeon and local musician is murdered in his Asheville, N.C., home, investigators uncover a trail of clues pointing to an unlikely killer; new details emerge from exclusive TV interviews with insiders close to the case.

The investigation into a newlywed's murder starts with a widow and ends with a possible serial killer.

A murder case considered closed by North Dakota detectives is suddenly reopened when a confidential informant comes forward with a tip about an unlikely suspect.

A woman finds herself on the wrong side of the law after she accuses her boyfriend of rape.

The FBI gets involved when a Virginia man's wife and son are kidnapped while vacationing in the Philippines, with a terrorist group demanding millions in ransom.

When a model and up-and-coming YouTube celebrity turns up dead, police question her husband in the hope he can shed some light on the situation.

After Florida teacher Denise Hallowell is found murdered in her home, investigators examine her family's tumultuous past in their desperate search for a killer; Denise's son Carlos Hallowell sits down for an exclusive interview.

After being severely beaten in her own home, a high school girl goes under hypnosis to try to identify her attacker.

A pregnant woman vanishes before her own baby shower and her worried family raises the alarm; detectives unravel a chilling mystery.

A series of mysterious events haunt 16-year-old Cassie Jo Stoddart while house sitting, and days later, she's found stabbed to death; police retrace her last day and uncover a stockpile of evidence pointing right to her killers.

When young mother and paramedic Annamarie Cochrane Rintala is found dead at the bottom of her basement stairs, it takes four trials and 13 years before justice is served.

When a Kansas prisoner escapes with the help of a prison volunteer and mother of two, investigators scramble to track the pair down.

A man convicted of murdering a woman in her upscale Austin, Texas, home tells his story for the first time.

After Todd Chance is murdered, police follow a trail of video evidence as they work to track down the killer.

A college student goes missing in broad daylight from her off-campus job at a softball field; investigators receive a mysterious phone call that changes everything.

An Idaho woman's affair with her married boss leads to a lethal confrontation.

Investigators try to determine what caused a house fire that killed the 41-year-old wife of a paramedic.

With no arrest having been made years after a real estate agent's murder, frustration continues to mount among her family and friends.

A man from Iowa is shot to death while sleeping in bed next to his fiancée; coincidences and quick thinking lead to surprising information regarding the killer's motive.