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

Uloma Curry-Walker wanted her husband, William Walker, dead. Learn how she had him murdered right after they married.

A man called 911 on March 22, 2018, in Menomonie, Wisconsin after a frantic, bloodied woman ran to his front door, saying she’d been attacked in the woods. She had defensive wounds and cuts on her ...

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

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 investigators arrive at the crime scene, they make a tragic discovery that will ...

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

What happened to the Memphis businessman?

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

Detectives reveal the weather was vital in Trent Mallory’s case.

After Leon Harrison Jr. disappears, a missing persons investigation leads to disturbing clues and reveals a toxic relationship.

Leon Harrison Jr., a loving father, goes missing. What happened to him that ultimately revealed his untimely death?