What lies behind a troubled mind? Psychologists examine the killer and his insanity claim. -- Find out more about the book Death on the River by Diane Fanning here: bit.ly/deathriver Can't wait to hear the rest of the season? Listen to all the episodes ahead of time on Stitcher Premium. Go to StitcherPremium.com/caseclosed and use the code CLOSED for a free trial. For more on this case, check out Crazy for You by Michael Fleeman here: bit.ly/crazyforyoubook