Season 3 Preview: "Trader Trent's" following on Facebook Marketplace opened up a range of possibilities for detectives.

Alex Sowa, Jim Sowa's son, tearfully recalls finding his father's body.

Friends and family tearfully recall the night that led to Carmela Knight's death.

Preview: It is quickly discovered that Carmela Knight died from blunt-force trauma before being badly burned in a house fire.

Preview: Carmela Knight, a "suburban hockey mom", was found dead after a house fire surrounded by drug paraphernalia. What happened?

Learn more about murder victim Scott Sessions and the shocking circumstances that followed when authorities tracked suspects Heather Frank and Kevin Eastman.

Learn more about how medical examiners determine the manner of death ahead of the Season 5 return of Oxygen's Accident, ...

Learn more about Patricia McDermott's fatal shooting in Philadelphia, and what police later found out about her killer Juan ...

Geier claimed that when Ishler was unable to come up with the money, he offered the professor marijuana plants he was growing ...

Learn more about Joyce Mitchell's life after helping Richard Matt and David Sweat escape from the Clinton Correctional ...

Learn more about what happened to Karen Swift after she vanished following a 2011 Halloween party in Dyersburg, Tennessee, ...

Find out what happened to John Altinger, who was brutally killed by budding filmmaker Mark Twitchell, who was obsessed with ...