A friend of Arapahoe High School shooting suspect Karl Pierson, who is accused of an 80-second attack that injured one student and ended his own life, said the suspect was a vocal fan of “The Anarchist Cookbook.”
Friend: Colo. shooting suspect read bomb guide
A friend of Arapahoe High School shooting suspect Karl Pierson, who is accused of an 80-second attack that injured one student and ended his own life, said the suspect was a vocal fan of “The Anarchist Cookbook.”