At 2:24 p.m., just five minutes after police say the gunman got out of the car in front of the school, the shooting stopped, according to an official police timeline. The rifle and backpack were ditched in a stairwell, and police say the shooter left the school in a crowd of fleeing students. In his Douglas High School polo shirt - authorities said Cruz had such a shirt from his time as a member of the school's Junior Reserve Officer Training Corps - he blended in. The armed police officer on the Douglas campus never encountered him, police said.