A pilot who died after crashing a small plane into a building in Alaska on Tuesday was not authorized to fly the aircraft, authorities said. Doug Demarest, 42, was killed after a Cessna 172 hit an Anchorage office building and smashed into a commercial building, the FBI said. The plane was owned by the Civil Air Patrol, which is a civilian auxiliary of the U.S. Air Force comprised of volunteers who assist with search and rescue. Demarest joined the patrol in 2010, the group said in a statement. The crash happened early morning and no one on the ground was hurt. The Federal Aviation Administration, the NTSB and the FBI are investigating.