Karl Halverson Pierson
Summary: student at Arapahoe High School in Denver, Colorado who had shot and critically wounded a female classmate identified as 17-year-old Claire Davis, then fatally shot himself after he requested to see a school librarian following a previous altercation from being demoted on the school debate team earlier this week, in which the shooting incident unfolded on the eve of the Newtown massacre anniversary as a somber reminder of the ever-present potential for violence in the nation's schools.
Cause of Death: Suicide by self-inflicted gunshot wound
Born: July 18, 1995
Died: December 13, 2013
Location: Centennial, Colorado