Did you note that he went to school with Sarah's daughter and graduated was one year older than Bristol. I am sure they knew each other as the high school wasn't that big and he was a sports star.
Did you ever consider they may have used he persona while keeping him safe? Look at his background, church-going Christian, republican, good husband, no history of problems.
He may have just played along out of sense of duty, pre-recorded voice and remote controlled plane?
Stranger things have happened and Q seem to be suggesting the plane crash had a purpose?