People acquitted by reason of insanity

Edward Theodore Gein, also known as the Butcher of Plainfield and the Plainfield Ghoul, was an American murderer and body snatcher. His crimes, committed around his hometown of Plainfield, Wisconsin, gathered widespread notoriety in 1957 after authorities discovered that he stole corpses from local graveyards and fashioned keepsakes from their bones and skin. He also confessed to killing two women: tavern owner Mary Hogan in 1954 and hardware store owner Bernice Worden in 1957.

Japanese author, murderer (1949-2022)

attempted assassin of Ronald Reagan (born 1955)

First suspect acquitted by reason of dissociative identity disorder (1955–2014)

Japanese nationalist intellectual (1886–1957)

British artist (1817-1886)

American serial killer (1854–1938)

American army surgeon, psychiatric-hospital patient, and lexicographical researcher

Barbadian Welsh identical twins, writer and crime duo

United States Army Medal of Honor recipient and Union Army general (1819-1914)

failed assassin of Queen Victoria (1822–1900)

Kazakhstani serial killer

British serial killer

US military officer and diplomat (1837–1911)

Assassin of South African Prime Minister Hendrik Verwoerd (1918–1999)

failed assassin of Andrew Jackson (c. 1800–1861)

American mass murderer

French serial killer (1874–1918)

Andrea Pia Yates is an American woman from Houston, Texas, who confessed to drowning her five children in their bathtub on June 20, 2001. The case of Yates—who had exhibited severe postpartum depression, postpartum psychosis, and schizophrenia in the years leading up to the murders—placed the M'Naghten rules, along with the irresistible impulse test for sanity, under close public scrutiny in the United States.

Canadian serial killer (1939-2010)

American playboy (1871–1947)

German spree killer (1874–1938)

Brazilian serial killer

recipient of the Victoria Cross (1888–1959)

American baseball player

Russian ethnographer, linguist and criminal

American failed assassin (1887-1975)

British wood-turner & criminal

Spanish serial killer

British serial killer

Russian assassin

Serial bomber (1903-1994)

Scotsman who attempted to assassinate Queen Victoria

Australian and English murderer and politician (1880-1947)

American writer (1866–1953)