Park Dietz

Biography

Park Elliot Dietz is a renowned forensic psychiatrist with over four decades of experience in high-profile US criminal cases. He gained national prominence in 1982 as the prosecution's expert witness in the John Hinckley Jr. trial, testifying that Hinckley was sane at the time of the attempted assassination. A pioneer in workplace violence prevention, Dietz founded Threat Assessment Group, Inc. and Park Dietz & Associates, two leading forensic consulting firms.