An avid firearms collector in a deep-blue state making jokes about committing mass murder shortly after a mass murder incident?
There is a level of stupidity here that is simply mind-boggling. What did he think was going to happen?
I don't think he was going to kill his boss or anyone else. He was just running his mouth. Free speech? Sure. So is saying the word BOMB on an airplane. Is it smart? No.
Just a phone call, with no actual process toward carrying it out, I doubt is a serious crime, if a crime at all. (There I go being a lawyer). Stupid is as stupid does.