He had an RV identical to the one that blew up, and he had an expired explosives handlers license from TN.
Here’s my guess:
I bet the suspect recently lost his wife to COVID-19, and perhaps he was also infected. He blames the Nashville bars and the anti-maskers running the downtown establishments. He had saved a moderate amount of explosives and blasting caps from his previous work, and that’s why he did it. He didn’t want to kill a bunch of nashvillians, but he wanted to strike at the bars.
Photo of the RV is out now.
https://www.wkrn.com/news/crime-tracker/photo-released-of-rv-used-in-downtown-nashville-explosion/
Is he sniffing them too?