ALASKA (HawaiiNewsNow) - Authorities say four others were also killed in the crash. An investigative team from the National Transportation Safety Board has been dispatched from Washington to find out how the plane crashed.
Officials say former NASA administrator Sean O'Keefe was also on board.
His condition has not yet been confirmed.
He was a student at Damien Memorial School.
Senator Stevens was one of Senator Daniel Inouye's closest friends.