Mark Cray is widely recognized for his profound contributions to the realm of documentary filmmaking, particularly in the context of true crime and investigative journalism. His most notable works include the critically acclaimed documentary series "Head Cases: Serial Killers in the Delaware Valley", which premiered in 2013, as well as the gripping documentary "Post-Mortem" released in 2010, and the thought-provoking documentary "The Ritual" that debuted in 2009.

















