Karl Pierson and shooting victim Claire Davis
The 18-year-old Colorado high school student who shot a classmate in the head and then killed himself in the school's library on Friday legally purchased a gun one week before the attack, ABC News reports
Karl Pierson's target was reportedly a faculty member at Arapahoe High School in Centennial, Colo., but the number of weapons he had on him suggested that he intended to harm more people. "His intent was evil and his evil intent was to harm multiple individuals," Arapahoe County Sheriff Grayson Robinson said during a press conference Saturday. Anyone over the age of 18 can legally buy a shotgun in Colorado, according to the Associated Press.
