Find out how investigators solved the case of a Georgia Army veteran who was ambushed and murdered at his own front door, where he was found by his wife.

When a young woman disappears and is later found dead, shocking information comes to light about who killed her and why.

Find out how a haunting double homicide of a mother and daughter in Las Vegas led investigators along a surprising trail of evidence.

A Shocking Killer and Coverup Are Revealed in a Case Full of Jealousy, Rage, and Betrayal ...

Leilani Beauchamp disappeared after leaving a Halloween party with her ex-boyfriend, Juan Parra-Peralta.

That’s the question at the center of a new Oxygen True Crime documentary, The Boston Strangler: Unheard Confession, which ...

In 2012, a tight-knit Las Vegas neighborhood is shattered by the murder of a mother and daughter in their home. Investigators must analyze a crime scene soaked in rage to help stop a killer before ...

Barbara Butcher speaks about her long career as a death investigator and the memories she has of it.

As Kelly Siegler and team piece together a woman's brutal attack, they find that her killer replaced what knife they were ...

Kelly Siegler talks about her distaste for pain ted nails and her experience wearing high heels in this lighthearted clip.

Cold case investigator Nancy McNally explained while doing a reconstruction of the crime that after Jackson was gunned down ...

Kelly and Abbey investigate the 1999 murder of a beloved churchgoing mother and grandmother, shot dead in her own home. With no known enemies, was she killed to send a cruel message to someone she ...