Lady of the Dunes: Hunting the Cape Cod Killer is an all-new, three-part documentary series coming this November to Oxygen, ...

The so-called "Kensington Strangler" successfully evaded police capture until one tip put them on his trail.

Investigators and loved ones speak out on Ezra McCandless' violent nature.

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

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

Investigators discover Bill and Nancy Mueller's trailer and Jeep abandoned in rural Arkansas, with no sign of the family to ...

When a convicted felon is found to be in possession of Bill Mueller's gun, he shares a description of the people he purchased it from.

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

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

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.

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

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