Vegas car bomb was curious

The Las Vegas bomber story below:

There are a few things that stand out about this as curious.

1. They easily identified the body as Livelsberger but the body was burned beyond recognition.  His body burned so bad but his ID's and smart watch survive the fire?

2. He was a Green Beret trained in weapons, but he used propane cans and fireworks to blow up his truck.  Why wouldn't he devise something more elaborate?

3. He shot himself in the head and then the truck exploded.  Maybe delayed fuse but

4. Uncle said that the man loved Trump, so why was he targeting the Vegas Trump building?

Thoughts?

He was awarded a total of five Bronze Stars, including one with a valor device for courage under fire, a combat infantry badge and an Army Commendation Medal with valor.

Hmmm, it sounds like Trump is setting up the military so he can take over it.