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 ...

After pleading not guilty, Henley was convicted in 1974 of murdering six boys, per The New York Times, and was given six ...

The new documentary "The Serial Killer's Apprentice" follows Dr. Ramsland who dives into the mind and memory of Elmer Henley ...

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

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 ...

Forensic psychologist Dr. Katherine Ramsland speaks about about Elmer Wayne Henley Jr., an accomplice to Texas murderer Dean ...

A new Investigation Discovery documentary, The Serial Killer’s Apprentice, centers on recorded conversations between Elmer ...

A new two-hour documentary, The Serial Killer’s Apprentice, is coming to Investigation Discovery. It focuses on the crimes of ...

Between 1970 and 1973, Dean Corll, aided by David Owen Brooks and Elmer Wayne Henley Jr., killed 26 young men in the Heights area of Houston. The night of Aug. 8, 1973, Henley shot and killed Corll.

IT was the evening of Wednesday, Aug. 8, 1973, and 17-year-old Elmer Wayne Henley was doing what he had been doing for the last 18 months -- finding victims for a sadistic murderer.

Elmer Wayne Henley made headlines around the world in 1973 when he killed Dean Corll and led police to the bodies of almost 30 young men and boys.

The bodies of 27 victims were uncovered by authorities in Aug. 1973 in three locations after Dean Corll was shot and killed by Elmer Wayne Henley. RELATED: Houston's most notorious serial killers ...