John Douglas on chasing serial killers

At 81, Former FBI "Mindhunter" John Douglas Reveals the 5 Killers Who Still Haunt Him

Victim’s sister used as bait to catch serial killer; FBI profiler John Douglas on how they did it

The real-life 'Mindhunter' reveals the most evil criminals he's interviewed | Your Morning

John Douglas: What Investigators Got Wrong in the JonBenét Ramsey Case

John E. Douglas: Mindhunter

The Minds Behind Mindhunter