Women begin turning up dead soon after an ex-convict is released from prison.
Two Texas teenagers go missing.
New evidence comes to light in a cold case involving a serial killer who targeted gay men in the early 1990s.
An Indiana nurse becomes suspicious when the death toll at her hospital quadruples over two years.
A gunman terrorizes Orange County, Cal.
A 2011 arson investigation in Texas leads to a widespread hunt for a sexual predator.
A serial arsonist is hunted in Washington, D.C.
A serial killer stalks young men in Louisiana.
A Seattle doctor is attacked outside his home, and the investigation leads to a violent ex-cop who may be linked to another crime from nine years earlier.
A serial killer strikes in rural Northern California.
The body of a teenage girl is found in Elkhart, Ind., a week after her disappearance, sparking a manhunt for her killer.
A seemingly charming new resident of a rural Alabama town is linked to a deadly house fire.
Recalling the case of a New Mexico man who allegedly kidnapped and tortured women.
An attack on a homeless woman provides clues to the identity of an elusive serial rapist.
A woman finds human remains in a driveway in Hamilton, Ont.
A man has recurring nightmares about a murder he witnessed as a youth.
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