Police Investigate Colorado High School Shooter’s Motive

Police on Saturday were looking into the motive of a student who opened fire at a Colorado High School, severely wounding a teenager before apparently killing himself, reports Reuters.

Karl Pierson, 18, entered Arapahoe High School in a Denver suburb around midday on Friday brandishing a shot gun and asked fellow students about the location of a teacher. He then shot a 15-year-old girl who was nearby, a county official said.

He was later found inside a classroom with an apparently self-inflicted gunshot wound. The teacher, who quickly fled the school, was unharmed.

Fellow students said Pierson was a smart and likeable member of the school’s track team and debate club.

Arapahoe County Sheriff Grayson Robinson said detectives were investigating “revenge” as a possible motive, but did not elaborate, though investigators believed the youth acted alone.

Police said they knew of no prior discipline problems.

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