In Born To Kill presenter Dan Riskin comes face to face with a murderer to find out what drives some people to kill. Is it bad brains, bad genes or entirely dependent on culture? With the help of the U.S. Marine Corps, Riskin learns how to create a lethal warrior. And he meets with a former executioner to understand the traumatic impact killing can have on a person’s psyche.
50 mins. Produced by Discovery Studios for the Discovery Channel, 2011.