I have a brilliant idea! Why don't they arrest this guy with proof of his illigal activities and have him charged and convicted of a felony!
Then he wouldn't be legally allowed to have any guns!
Oh, wait, I guess they can't. God forbid we adhear the whole innocent until proven guilty thing and understand why it exists.
(and no, I'm not saying this guy is all sunshine and rainbows, an innocent little lamb of great moral fiber. I'm guessing he's as guilty as sin. However, since most of us are flawed in some way or another, I'd rather wait for conviction to deny rights to anyone)