What is “The Serial Killer’s Apprentice” about? When “The Serial Killer’s Apprentice” launched on Aug. 17, viewers witnessed unprecedented interviews with Elmer Wayne Henley Jr., the accomplice to ...

“The Serial Killer’s Apprentice” airs episode 2 today, Sunday, Aug. 24, at 9 p.m. Eastern on Investigation Discovery with a plunge into a psychological labyrinth. Watch for free on platforms including ...

WICHITA, Kan. (KWCH) - On August 18, 2005, 20 years ago, a Sedgwick County judge sentenced Dennis Rader, also known as the BTK serial killer, to 10 consecutive life terms. This sentence accounted for ...