, a former Chicago gang member and rapper who started the Des Moines program for at-risk teens. He was acquitted of attempted murder in the shooting of Keeps.
Defense attorneys acknowledged Walls killed the two students and shot Keeps, but they argued he did so because he believed his own life was in danger. Walls was set to graduate from the program two days after the shooting and said he thought Dameron and Carr would attack him when he left school because they wouldn't have an opportunity later.
"I was scared to walk out of that school at 1 o'clock. They waited outside the school for me before," Walls told jurors.
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