John Douglas on chasing serial killers

FBI profiler John Douglas talks the ZODIAC KILLER

Interview with John Douglas, Author of "The Killer Across the Table"

Inside the Mind of BTK by John Douglas - Audiobook - Part 1

John Douglas on the mind of a criminal

John Douglas Bio Clip

JONBENET Grand Jury Asked to Speak To John Douglas - You'll Never Guess What One Juror Asked Him!