CENTENNIAL, Colo. — Police pressed their search for details Saturday explaining the apparent revenge that Karl Pierson sought when he opened fire in his Colorado school while seeking a faculty member.
Pierson, 18, critically wounded a 17-year-old girl and then shot himself, police said. Officials weren’t certain whether the wounded student was a deliberate target or not.
Investigators had contacted Pierson’s friends and family, and were investigating at least four potential crime scenes, they said. Police seemed to have finished their initial search of Pierson’s home Saturday afternoon. The front door of the Highlands Ranch house was boarded up, and the place sat deserted; the only movement an American flag flapping in the breeze.