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i'm julia cowley retired fbi agent and profiler and former special agent forensic
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scientist with the tennessee bureau of investigation this podcast is about criminal profiling
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this is certainly an unusual case i've never seen anything quite like this one with many serial killers it's the
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killing part that they enjoy and once they've killed the person they're done not mark twitchell
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action mark twitchell was an aspiring filmmaker [Music] i interviewed him for my book and we
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corresponded for a number of years he wrote me probably 30 or 35 different letters up to about 350 pages of letters
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in one letter a mark twitter wrote wrote back to me and this is what he said the
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fact is society in general has a deep and profound fascination with the dark side of human nature
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[Music] i do think mark twitchell was using the filmmaking as an outlet to live out his
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fantasies and it ultimately wasn't enough for him and that's why his fantasies crossed into reality
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i think mark twitchell believes that he is very smart very methodical very logical very level-headed much like
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the character of dexter morgan and so i think he got ideas from the show i think he was drawn to the character
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because that's what he wanted to be there's significant links to dexter he had a kill room set up with plastic
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sheeting he had a table set up for his victims he had this kind of processing kit that was very similar to which
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dexter uses [Music] never once did it cross his mind he'd ever be caught they aren't going to
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catch me i'm too smart nothing's going to lead him to me [Music] our job is to put together the pieces of
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the puzzle and in this case we had a written document there was this document titled sk confessions found in a deleted
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form on mark twitch's laptop and it appeared to read like a diary this is the story of my progression into
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becoming a serial killer and it documented blurring people off the internet his first victim was a man
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named jill tetro i saw this lady she had blonde hair she's about five six she was very
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attractive looking and what was her name her name was sheena sheena yeah i messaged her she
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messaged me back how about we go to dinner in a movie i thought that was a great idea
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she wouldn't give me the house number but she just sent me really really good directions on how to get there
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he thought hey what's the worst that could happen [Music]