FBI: Motive a mystery in bizarre, fiery crash at Travis Air Force Base gate

It seems there was a type of bomb with the propane, Gasoline and an already set fire, He had locked the doors and didn't try to leave the vehicle while it was burning. If He had a cause He din't make it apparent, all He has to show was doing a very stupid thing to end His own life and it seems pointless. I guess not everyone that kills or blows themselves up makes statements before though for what wasn't a good decision in the first place.