New developments Thursday in last month's University of Texas campus shooting.
Police have concluded the 19-year-old shooter who killed himself never meant to harm anyone.
The UT Police Chief says Colton Tooley waved at a guard and said "excuse me" when he bumped into a person on his way to the library where he shot himself.
Police say Tooley fired eleven rounds from an AK-47.
Yet all those shots were fired into the ground or the air.