A St. Louis County jury has convicted a man of kidnapping a six-year-old girl from the home where he’d been a guest, trying to rape her, and then beating her to death with bricks and rocks when she fought with him. The same jury which took two hours to convict Johnny Johnnson of killing Casey Williamson is now deciding whether he should be executed. Johnson has been diagnosed as suffering from mental illnesses. His lawyer was hoping for conviction on a lesser charge that would have put him in prison for the rest of his life without parole.