“James Oliver,” Mike said when he and an officer came over to Oliver in the garage Thursday afternoon. “You are under arrest for the murders of Vance Acker and Gene Norton.” The arrest was precipitated by two things. The forensics expert had found traces of gunshot residue between the inside and outside panels of the driver’s side door. That had given Mike what he needed to get a warrant from a friendly judge to search the car and Oliver’s home. He had gone to the garage, as the man was at work, to serve the warrant. For a moment, Oliver had seemed nonplussed. Then, rather smugly, he said, “Have at it. You ain’t going to find anything,” and gave Mike the keys as if he hadn’t a care in the world. “Guess he thinks he’s smarter than the police,” an officer said an hour later when he came up