Blount County Sheriff's investigators say a 63-year old Hayden man was killed while trying to land his helicopter in a pasture. Investigators say William Gary Latham was the only person onboard the 1954 Bell Helicopter, when it crashed just yards from his home. He was pronounced dead on the scene. A witness says the wind may have had something to do with the accident. The National Transportation Safety Board and FAA are in Blount County for the investigation.