The rifle and backpack were ditched in a stairwell, and police say the shooter left the school in a crowd of fleeing students. (washingtonpost.com)
As police cleared the hallways, cellphones — both left behind by fleeing students and on the bodies of victims — buzzed with unanswered messages and calls. (washingtonpost.com)
The shooter had fired about 150 times when he dropped his AR -15-style rifle and escaped from school property by blending in with fleeing students. (local10.com)