Joseph Kallinger (December 11, 1935 March 26, 1996) was an American serial killer who murdered three people and tortured four families. He committed these crimes with his 13-year-old son Michael. Kallinger was born Joseph Lee Brenner III at the Northern Liberties Hospital in Philadelphia, Pennsylvania to Joseph Lee Brenner, Jr. and his wife Judith. In December 1937, the child was placed in a foster home, after his father had abandoned his mother. On October 15, 1939, he was adopted by Stephen and Anna Kallinger. He was abused by both his foster parents so severely that, at age six, he suffered a hernia inflicted by his foster father. The punishments Kallinger endured included kneeling on jagged rocks, being locked inside closets, consuming excrement, committing self-injury, being burned with irons, being whipped with belts, and being starved. When he was nine, he was sexually assaulted by a group of neighborhood boys.
Contributions by Treybien, Marksdaman, and Good Olfactory.