After his release from prison, Olson Jr. would go on a vicious killing spree and ultimately be convicted of eleven murders. Why would somebody who didn’t have a violent past suddenly turn into a monster?Sponsors!Ring - Save up to $150 off a Ring of Security Kit when you go to Ring.com/SERIALKILLERSShudder - To try Shudder free for 30 days, go to Shudder.com/podcast and use promo code  SERIALKILLERS. Learn more about your ad choices. Visit podcastchoices.com/adchoices