Bruh I've been entertaining the idea myself personally.
Having worked retail, some of the worst customers are middle age white men. They are entitled and bitter about the world because their wife left them, or they hate their kids, or some other relatively small matter that they commit suicide about.
Given that personality type, imagine being this type of person for a minute. You book a hotel room at the Mandalay bay and for three fukking straight days there is a bunch of honkey tonk crackas playing country music down stairs day and night and a bunch of hillbillies are walking around loud and smelling like budwiser.
This dude was probably on some falling down "GOD DAMN REDNECKS. LET ME GET MY GUNS. I fukkING HATE THIS shyt!" and setup shop.
Everyone is so used to there being a political or social motive to make the act more meaningful than it actually was. When it probably was just some angry cac with a lot of money and resources to actually put his anger into some flashy action.