I don't know why you keep making statements without checking first... Bush, Palin, and others were hung in effigy numerous times.
Bush being hung and burned in effigy:
Palin hung in effigy:
Bush compared to Hitler:
Bush guillotine:
Burning a flag and US soldier effigy:
I could go on and on, there are hundreds more like these. And these are the kind of sick folks who got their rocks off ever time Olbermann spouted off about Bush. They posted links the morning after every Olbermann show that he ripped into Bush. I debated folks like that on another forum for years.
Edit: As for guns, the guy was far away from the President, and exercising his constitutional rights. The Secret Service never would have let him into the same building as the Pres with those guns. And he was a black guy, not the "white racist" portrayed on MSNBC...