CENTENNIAL, Colo. (AP) Authorities have identified an 18-year-old as the student who opened fire with a shotgun at a suburban Denver high school before killing himself.
Arapahoe County Sheriff Grayson Robinson identified the shooter Friday night as Karl Halverson Pierson.
The sheriff has said Pierson made no attempt to hide his weapon after entering the school from a parking lot and asking for a teacher by name.
Robinson did not elaborate on any possible motive except to say Pierson had had a "confrontation or disagreement" with the teacher.
Authorities now say Pierson shot one fellow student, not two as originally reported. The wounded 15-year-old underwent surgery and was in critical condition.
Another girl who was taken to the hospital with reported minor gunshot wounds, but the sheriff says she was covered in blood from the other student and wasn't injured.
A Colorado sheriff says a suspect in a Denver-area high school shooting has died of an apparent self-inflicted gunshot wound.
Arapahoe County Sheriff Grayson Robinson said Friday one other student also was wounded at Arapahoe High School in Centennial.
State division of emergency management spokeswoman Micki Trost said Friday that her director went to Arapahoe High School in Centennial. There weren't any more immediate details.
Police were outside the school, and students were seen milling around on sidewalks.
The school is about 8 miles east of Columbine High School in Littleton, where two teenage shooters killed 12 classmates and a teacher before killing themselves in 1999.