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posted: 8/16/2014 11:15 AM

Teen gunman's threat deemed low-level

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  • In this December 2013 file photo, Arapahoe High School students hug at a tribute site for fatally-wounded student Claire Davis, who was shot by classmate Karl Pierson during a school attack six days earlier at Arapahoe High School, in Centennial, Colo. School disciplinary documents obtained Associated Press show that less than a week after Pierson shouted a death threat against his debate coach in a school parking lot, school officials determined that he was "not a high-level of threat" and allowed him to return to his classes.

      In this December 2013 file photo, Arapahoe High School students hug at a tribute site for fatally-wounded student Claire Davis, who was shot by classmate Karl Pierson during a school attack six days earlier at Arapahoe High School, in Centennial, Colo. School disciplinary documents obtained Associated Press show that less than a week after Pierson shouted a death threat against his debate coach in a school parking lot, school officials determined that he was "not a high-level of threat" and allowed him to return to his classes.
    Associated Press

 
By SADIE GURMAN
Associated Press

LITTLETON, Colo. -- Documents show that a teen who fatally shot another student at a Colorado school last year had been deemed "not a high-level of threat" after shouting a death threat against his debate coach three months earlier.

Authorities have said 18-year-old Karl Pierson was targeting the coach when he entered Arapahoe High School in December armed with a shotgun, a machete and homemade bombs.

Pierson killed a 17-year-old girl before taking his own life in the school library. The debate coach -- a librarian -- escaped unharmed.

The disciplinary records obtained by The Associated Press also show that Pierson was sent home from school early two days before the shooting after he pounded on a locked classroom door so hard that teachers in other classrooms could hear it.

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