New information unveiled in the Kemper case in the book The New Evil: Understanding the Emergence of Modern Violent Crime by authors Michael H. Stone MD and Gary Brucato PhD, published earlier in 2019.
According to a source close to the 1973 investigation, Kemper did not use his mother’s head as a dartboard, after he murdered and decapitated her. Instead, he apparently used her genitals.
The authors are currently writing a new book, which will feature a full chapter about the Kemper case. No release date announced yet.
Thanks to the authors who informed us about this finding.