Two people were killed Tuesday night when their plane crashed in a bean field on Sherrell Road in the Jacksboro community.“It sounded like a 500-pound bomb going off,” said James Ledbetter who heard the explosion from his nearby home. “He throttled it, then let off and throttled it again.”Law enforcement officials have positively identified the victims as Tommy Stiles of McMinnville and flight instructor Larry Barnes of Spencer. The Piper Saratoga in which they were flying was registered to A.W. Stiles Construction.Calls began flooding into 911 just before 7 p.m. Tuesday after area residents reported hearing the plane fly over, throttle up and then down before hearing a loud explosion.