Como Actor/Actriz
20/20
Self - Professor of Forensic Psychology, DeSales University (archive footage)
Cuando el mal se disfraza
Self - Forensic Psychologist
La peor pesadilla
Self - Forensic Psychologist
Northern Mysteries
Self
One Night in Idaho: The College Murders
Self - DeSales University Professor (archive footage)
The Mark of a Killer
Self - Forensic Psychologist
BTK: Confession of a Serial Killer
Self - Forensic Psychologist
The Serial Killer's Apprentice
Self
Becoming Evil: Serial Killers
Self - Forensic Psychologist / Author
Staged: Deadly Deception
Self - Forensisch Psychologe
National Vampire
Self
The Torso Killer Confessions
Self - Forensic Psychologist
Albert Fish: In Sin He Found Salvation
Self - Forensic Psychologist
BTK: Confession of a Serial Killer
Self - Author & Professor of Forensic Psychology
The Co-Ed Killer: Mind of a Monster
Self - Forensic Psychologist
The Idaho Student Murders
Self - Serial Killer Expert & Former Teacher of Bryan Kohberger (archive footage)
Carl Panzram: The Spirit of Hatred and Vengeance
Self - Forensic Psychologist
Sins of the Father: The Green River Killer
Self - Forensic Psychologist
The Mysteries of Bradshaw Ranch: Aliens, Portals, and the Paranormal
Self - Forensic Psychologist / Author