Mindhunter Season 2: 9 Serial Killers Confirmed
2. William Pierce, Jr.
William Pierce, Jr. committed at least nine murders after being paroled in 1970, despite numerous red flags that he was likely to perpetrate a violent crime upon being released.
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His spree began just a month after being set free, and a mere 10 months after his release, he was arrested for the murders.
Though there was significant controversy over the violent means used to obtain a confession from Pierce - including cuts and burns to his genital area - he was eventually convicted of three murders and sentenced to life imprisonment.
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The contentious nature of his confession and the fact that his IQ reportedly "barely broke 70" should make him an intriguing interviewee for Ford and Tench.