Colorado school shooting suspect named

The gunman in the Colorado high school shooting has been identified by Arapahoe County Sheriff Grayson Robinson as 18-year-old Karl Pierson.

The gunman was found dead at the scene at Arapahoe High School in Denver.

Read: Police search school shooting suspect's home


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.