Find out more about an Indiana jury's decision to convict Richard Allen in the murders of teens Abigail Williams and Liberty German.

After Lt. William Walker succumbs to his injuries, investigators must find out who killed him and why.

A well-respected firefighter and loving family man is found gunned down outside his suburban home, sending police on a ...

Ezra McCandless tried to claim she stabbed her ex-boyfriend Alex Woodworth to death in self-defense. See what police decided happened.

Find out why James Henrikson had Doug Carlile fatally shot in his Washington state home, and how Henrickson was linked to Kristopher Clarke's disappearance.

Find out why Joseph O’Boyle brutally killed his doctor, beloved chiropractor James Sowa, in his Bensalem, Pennsylvania, home, and how detectives found him.

A young woman seeks refuge at the home of a Wisconsin farmer, claiming she just escaped from a violent assault. When ...

Learn more about the investigation into Michigan man Trent Mallory's 2014 murder, as told in Oxygen's Killer Relationship.

Family man and all-around nice guy Trent Mallory is murdered in his sleep in rural upper Michigan. Sorting through multiple ...

During one of the most shocking trials of the 1990s, brothers Erik and Lyle Menendez were convicted of brutally murdering ...

What happened to the Memphis businessman?

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