The specialist who examined Roland Roberts, an 18-year-old South African sailor, concluded that he had behavioural problems Roberts habitually chewed his beard and smashed his head against lockers or walls. The specialist prescribed a mild sedative.
Two months later, in December 1956, Roberts met Clara Arkin, 47, in a Cape Town pub, and suggested they spend the night together. She refused, so he raped her and stabbed her to death.
Brought to trial for murder, Roberts claimed that he felt justified in killing the woman. He was found guilty and hanged in Pretoria on Friday, November 8th, 1957.