And, he requested paid time off, not something someone suicidal would do. Also was a big Musk and Trump fan with selfies in the Musk style black MAGA gear, so driving a cybertruck to a Trump hotel in Vegas while on vacation would have been on brand for him.
I still think it was just the Tesla blowing up $ to cover bad optics they're trying to paint it as a terrorist attempt. The guy was active military special ops (which means security clearance with mental health screening) ordinance expert so he would have known how to make the car go boom for real.