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Conservative Republicans have settled on a new slur, 'groomers,' for those who support sex education in schools.

Had become a killer's hunting ground. ed kemper was identified only after he confessed and he was the first serial killer i ever interviewed face-to-face for the fbi's behavioral sciences unit. his crimes were some of the most grisly i had ever seen and i wanted to know how and why he chose his victims and what made him tick. i need to know the fantasy and how it begins, and why it begins, and how could someone commit such a horrific crime against others? and was there a triggering mechanism that did it? was he born this way or was he made, made to be who he is today? (sfx: video game vehicle ...

But after he was convicted, he said he didn't do it. the challenge in profiling gacy is that he's a perpetual liar, but i was determined to get to the truth because that's what i do. i am the real mindhunter and the stories i'm about to tell you are all fact, no fiction. let me just tell you about myself. i joined the fbi in 1970. i was a sniper on the swat team. i then became a hotshot negotiator. i was recruited by the behavioral science unit. behavioral science is psychology. it's really learning to walk in the shoes of the subject and the offender when you're analyzing a case. but before i...

(intense rock music) my name is john douglas. as an fbi agent, i studied hundreds of serial killers and talked to many of them face-to-face. when i joined the fbi's behavioral sciences unit in 1977, my job was to decode the minds of america's most notorious serial killers using a brand new approach called criminal profiling. officers from all over the country, they're bringing in cases. how can we understand the cases if we don't talk to the bad guys? (typewriter keys clacking) this study was about understanding different patterns of criminal behavior. the purpose of the interviews was to lear...

Jouhn Douglas (top left inset and at right), who interviewed Kemper in 1973, exclusively revealed how the experience led him to develop a serial killer profiling system still used today.