Shriner, who was described as "a slightly retarded man with a bizarre physical appearance"[REF] and tested to have an IQ of 67[REF] had a long history of sadistic sexual assaults but only one conviction.
In 1966, when Shriner, at that time sixteen, was detained for strangling a seven-year-old girl, he led the police officers to the body of a developmentally disabled 15-year-old girl instead, whom he had strangled.