He said, and I quote: "Carburruvius tweeted this out after the Sandy Hook School shootings. Can we now shoot the #NRA and everyone who defends them?"
It seems like a joke, but that's exactly what the Bolsheviks did in Russia in 1917.
It's also what the Nazis did in 1938--following Krystallnacht, at which time they began burning Jewish synagogues, murdering Jewish people, and sending thousands of Jewish Germans to concentration camps when a Jewish teenager shot a German diplomat in Paris.
Talking about dead political opponents is not a good idea considering the consequences it brings about.