Suicide ?? Oh please !!!!!!!!!! - let's wait for SOME form of enquirey that didn't have it's origins in Salem !!
Perhaps this poor chap noticed a bolt on the ground, a piece of tarmac junk blowing towards the engine and he rushed to retreive it, totally losing his situational awareness and unfortunately, his life. I had a JT9 light off on just the N2 once - fan was locked solid. It was a number 3 engine and before I had even a hint of what was happening a mechanic rushed to the inlet/ leant way in and tried to turn the fan !!!!!!!
Guess what ? the thing unlocked and took off like a scalded cat. People do the most unlikely and in some cases, stupid things. On occasion they get away with it, on others' they die.
My thoughts for the family of this poor industry coleague.
Let the investigators work it out please, you normally do when a driver screws it right royally.