Chris Hernandez offers up 80 seconds of wisdom:
Last week at the Arapahoe High School in Colorado a student named Karl Pierson walked into school and opened fire with a shotgun. He fired five rounds, badly wounding a beautiful young girl, before he saw a campus police officer advancing toward him. Pierson killed himself with his sixth round. The incident was captured on video, and lasted approximately 80 seconds from first shot to last.
80 seconds. And the mere presence of an armed “good guy” forced Pierson to stop targeting victims, and shoot himself instead.