Find out what happened to Kim Dorsey, who was found brutally bludgeoned and stabbed to death in her Florida bedroom by her firefighter husband, Derrick Dorsey.

Find out more about the latest updates in the case of Erik and Lyle Menéndez, who received support from reality star Kim Kardashian.

Learn more about the investigation into the Sunset Strip murders and the eventual arrest of Doug Clark and Carol Bundy.

When a killer has had months to plan their murder, you're playing chess against a master.

Learn more about the many serial killers who terrorized the state of California, including the Zodiac Killer, Night Stalker, and Golden State Killer.

Learn more about what happened to college art student Katelyn Markham, who mysteriously vanished in 2011 from her Fairfield, ...

A Plan to Kill is a new true crime show coming to Oxygen. Learn more about the series, watch the trailer, find out the premiere date, and more here.

Find out more about the investigation into the Bouncing Ball Killer, who killed at least seven women from 1959 to 1960 in Los ...

Learn more about the investigation into the murder of Becky Bliefnick, who was shot 14 times in her Quincy, Illinois home.

Investigators search around the Parker residence and find that the bullets fired into the home were shot from a high-powered ...

What happened to Kate MacArthur? Learn how Mary Orsini arranged her murder over an imaginary romance with her lawyer, Bill ...

Scott Swilley finds his wife, Tara Parker Swilley, shot to death in their bed.