Who was harmed by his actions?
Essentially a life sentence, raising 8th Amendment questions. I trust his attorneys are appealing.
Did this guy actually fire a weapon at anyone?
Gregory Burleson,

Guess the jury said BS, as they were anti-guns. Guns DO put the right people in JAIL: Where they belong. ENJOY the 50 years of HARD Times with BIG BUBBA!

Let's see how the Coward deals with people with guns.
What was his crime? Exercising his 1st and 2nd amendment rights?
Try reading the full report.
“Yes, I was down in the wash. I went down there with the intention to see what was going on,” Burleson said during his sentencing hearing Wednesday in U.S. District Court in Las Vegas.”I did not go down there with the intention of assaulting or killing anyone.”
After the standoff, Burleson, posted incendiary, anti-government messages to his Facebook page.
“I was hell bent on killing federal agents that had turned their back on we the people,” he told an undercover FBI agent who posed as a documentary filmmaker in order to interview him. During the sentencing hearing, Burleson, a Phoenix resident, acknowledged some of his previous errors.
“Yes, I said a lot of crazy things. I’m ashamed of them actually,” he said to U.S. District Judge Gloria Navarro. “Looking back at them, it’s like, ‘wow, obviously I shouldn’t drink.’”