So, you did not witness the crash.
Your only source of information is a TV program, and you aren't exactly sure which program.
You mention that 'stray electricity' go into a fuel sensor.
How do you create 'stray electricity'? Where did it come from? How did it get into the tank, into the sensor?
Why can lightning strike an aircraft, and yet not cause fuel tanks to explode?
Why did the FBI take over the investigation from the FAA, when it is the distinct role of the FAA to do the job?
There were experienced pilots and flight-combat veterans who state they saw a missile. Why would you reject their word?
The FBI states the front half of the fuselage climbed 1000 feet after the 'explosion'. Do you really believe this is physically possible?
Read the report and get back to us, you might learn something. You have much, much, much catching up to do.