Heres the equation....
you add it up and see what you get.
ADD - Elected Republicans support and vote for complete unfettered access to any firearm with no licensing, no training and no mental health limitations.
ADD - During the entirety of his campaign "Dear Leader" continuously urged his supporters to perpetrate violence upon those who disagreed with him even insinuating that the "2nd amendment people" could do something about the problem if Clinton and Liberal judges got elected.
ADD - Elected Republican officials like Senator Rand Paul specifically stating crap like this ---- "Why do we have a Second Amendment? It's not to shoot deer. It's to shoot at the government when it becomes tyrannical!"
Now why should there be any surprise at gun violence directed at elected officials?
This is a one sided issue...the elected Republicans have made this environment and they need to defuse it.