The "Serial Killer's Apprentice" episode 2 airs tonight on Investigation Discovery. Find out how to watch for free as ...

One of the two teenage accomplices of a serial killer dubbed "The Candyman Killer" is speaking out from behind bars in a new ...

True crime writer and producer Tracy Ullman joins Karen Conti to discuss the newly released HBO documentary, ‘The Serial ...

Dean Corll killed at least 27 boys in the early 1970s, but he had help. ID's The Serial Killer's Apprentice digs into how—and ...

A man who helped lure victims for the notorious Candy Man killer back in the 1970s is speaking out on a new doc for the first ...

The Serial Killer's Apprentice,' airing Sunday, dives into the relationship between evil mastermind Dean Corll and one of the ...

In Investigation Discovery’s ‘The Serial Killer’s Apprentice,’ the primary focus is on the gruesome crimes committed by Dean ...

Former gas station worker Elmer Wayne Henley Jr. revealed how he became an accomplice to "Candy Man" serial killer Dean Corll ...

A new Investigation Discovery documentary, “The Serial Killer’s Apprentice,” unpacks the story of Elmer Wayne Henley, who, as ...

In 1975, Elmer Wayne Henley was sentenced to life in prison for his role in the Houston mass murders. Here’s everything to ...

Criminologist Dr. Katherine Ramsland takes Elliott inside the chilling story of Elmer Wayne Henley Jr., accomplice to the ...

Renowned forensic psychologist Dr. Katherine Ramsland spoke to PEOPLE about the mindset of Elmer Wayne Henley Jr., an ...