Dayton officials break down mass shooter's path

Connor Betts was wearing a dark T-shirt with large white letters on the back that read "Stupidly Brutal Death Grind," the title of a song by a death metal band. Police did not speculate on what the words meant to Betts, but they said the T-shirt helped them track Betts' movements and build a startling visual timeline of Betts's deadly Aug. 4 attack in the Oregon District.