Park Dietz

Acting

Park Dietz

Born

1948-08-13 (78)

Place of birth

Camp Hill, Pennsylvania, USA

Known for

Acting

Credits

10 titles

Park Elliot Dietz (born 1948) is a forensic psychiatrist who has consulted or testified in many of the highest profile US criminal cases including Joel Rifkin, Arthur Shawcross, Jeffrey Dahmer, The Unabomber, Richard Kuklinski, the Beltway sniper attacks, and Jared Lee Loughner. He came to national prominence in 1982 during his five days of testimony as the prosecution’s expert witness in the trial of John Hinckley, Jr., for his attempted assassination of President Reagan on March 30, 1981. Then an assistant professor of psychiatry at Harvard Medical School, Dietz testified that at the time of the shooting, Hinckley knew what he was doing, knew it was wrong, and had the capacity to control h…

Known for

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First Tuesday or This World is a monthly television documentary strand, shown in the United Kingdom on the ITV network and was produced by Yorkshire Television. The subject matter was mainly social issues and current affairs stories from around the world. It ran from 5 April 1983 to 2 November 1993, with programme being shown on the first Tuesday of the month, hence the title. In 1993, Network First was a part replacement for First Tuesday.

First Tuesday

1983

Conversations with a Killer: The Jeffrey Dahmer Tapes poster
7.8

Serial killer Jeffrey Dahmer confesses to his gruesome crimes in unguarded interviews, offering an unsettling view into a disturbed mind.

Conversations with a Killer: The Jeffrey Dahmer Tapes

2022

Crazy, Not Insane poster
7.2

Fascinated by the human brain and its capacity for ruthlessness, psychiatrist Dr. Dorothy Otnow Lewis has spent her life investigating the interior lives of violent people. With each case, she came closer to developing a unified field theory of what makes a killer. Along the way - steering away from the conventional wisdom of her colleagues - she explored the world of multiple personality disorder.

Crazy, Not Insane

2020

Jeffrey Dahmer: Mind of a Monster poster
7.0

With access to hundreds of pages of police and FBI transcripts and personal testimony from family, friends, and survivors, the haunting story of how Jeffrey Dahmer went from shy adolescent to a notorious serial killer and cannibal is revealed.

Jeffrey Dahmer: Mind of a Monster

2020

The Iceman and the Psychiatrist poster
7.4

For the third time, HBO cameras go inside Trenton State Maximum Security Prison--and inside the mind of one of the most prolific killers in U.S. history--in this gripping documentary. Mafia hit man Richard Kuklinski freely admits to killing more than 100 people, but in this special, he speaks with top psychiatrist Dr. Park Dietz in an effort to face the truth about his condition. Filled with more never-before-revealed confessions, it's the most chillingly candid Iceman special yet as it combines often-confrontational interview footage between Kuklinski and Dietz with photos, crime reenactments and home movies that add new layers to this evolving and fascinating story.

The Iceman and the Psychiatrist

2004

Death of a Fantastic Machine poster
7.0

A short film about how economic interests have, throughout history, influenced how we use the camera — from the earliest photographs to today’s algorithms and AI. This visual essay expands on themes from the acclaimed documentary about the history of the camera and our relationship to it, “And the King Said, What a Fantastic Machine.”

Death of a Fantastic Machine

2025

Film credits

2020s · 3 titles

2000s · 2 titles

Series credits