Three people were reported killed this afternoon when a small plane crashed at Centennial Airport in Arapahoe County, a week after a fatal crash at the same field. The twin-engine plane went down at about 3:20 p.m. Authorities at the scene said three people aboard the Cessna 421 were killed in the crash. A woman and two men were reported to have been aboard, said South Metro Fire Rescue spokesman Andy Lyon. A Federal Aviation Administration spokesman said the plane apparently experienced a failure in one of its engines on takeoff and was trying to come back around to land...