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Girl critical after Colorado high school 'revenge' shooting

A 17-year-old female student is in a critical condition in hospital after being injured in a shooting at a high school in the US state of Colorado. The suspected gunman was found dead at the scene with an apparently self-inflicted gunshot wound.

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Colorado school gunman had 'strong political beliefs'

Karl Pierson, the 18-year-old who opened fire on a high school in Colorado "held strong political beliefs" according to his classmates.

After opening fire at Denver's Arapahoe High School in what the local county sheriff said was most likely a "revenge attack" on a teacher, the teenager fatally shot himself.

A 15-year-old girl was seriously injured in the attack, and two other students were wounded, but have since been released from hospital.

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