 Louis van Square killed 39 people, but he was convicted on only seven counts of murder. The rest were classified as justifiable homicides by the apartheid-era police. A BBC investigation has unearthed new details about his case, including claims by van Square that the police encouraged his killings. The South African police did not respond to a request for comment. I'm Fray Lindsey at the BBC. Morning edition on WSHU, the Marketplace Morning Report.