Dr. Judd Marmor, 93, a psychiatrist ‘who was influential in having homosexuality removed from the American Psychiatric Association’s official list of clinical disorders,’ died on Dec. 16 in Los Angeles, his son, Dr. Michael F. Marmor, said, according to The New York Times. ‘In the early 1960s, Dr. Marmor, a psychoanalyst, took the radical position that homosexuality was a variant of sexual behavior as opposed to a deviation or illness. He also contended that homosexuality had multiple roots—genetic, biological and psychosocial—and did not stem from a dysfunctional mother or a home life fraught with problems, as was the theory of the day,’ The Times reported. As the vice president of the American Psychiatric Association, he said the criteria normally applied for a mental illness did not apply to homosexuality.