He learned to respect the unexplained and not dismiss it out of hand.He collaborated with two of the closest witnesses to what happened at Rendlesham — Airman Burroughs and his immediate superior in 1980, Staff Sergeant Jim Penniston.
The UFO was seen on three consecutive nights by dozens of highly trained military personnel, none of whom had any history of hysteria or penchant for UFO-chasing.
On the second occasion those who ventured into the forest included the second-in-command at the base, Lt Col Charles Halt.
Around them, branches were snapped off trees it had passed when landing and taking off.
Later, men with Geiger counters picked up radioactive readings way above the norm.
Both are retired from the military but still troubled by what they experienced.