Ex-Detroit cop linked to wrongful convictions admits doubts over key evidence from the start Within six months, three men housed on the 9th floor lock-up at Detroit Police Headquarters will be convicted of separate murders that most of the evidence showed they had nothing to do with. and last updated 2021-04-14 20:51:29-04 DETROIT (WXYZ) â Itâs November 1994. Within six months, three men housed on the 9 th floor lock-up at Detroit Police Headquarters will be convicted of separate murders that most of the evidence showed they had nothing to do with. The first was Larry Smith, then Ra...