“They suspect it because it could have happened?”
Probably suspect it based on his searches. There is no way to prove since we have no video and the plane is obliterated
Not to mention trying to find the pilot when him and passengers formed one fleshy puddle.
The plane was obliterated, and so was Capt. Soderheimer. So, frankly this is just an educated guess.
CC
P.S. “skydevil” got to meet his namesake that day.