http://www.washingtontimes.com/news/2016/dec/21/justin-barkley-accused-wal-mart-shooter-tells-judg/

When the evening news and leading democrats repeatedly tell us, with deadly seriousness, that Trump and his supporters are: "Hitler," "fascists," "bigots," "haters," "racists," "terrorists," "criminals" and "white supremacists" and they use that rhetoric to rile up the communist and socialist portion of the base which is very large now those people feel justified in taking action. When you demonize and dehumanize someone it makes it a lot easier to justify harming them.

By the way very presidential assassin and attempted presidential assassin who had a political motive was a leftist, a socialist, a communist or a member of a hippie commune.

The left of America has become the party of violence it goes along with their beliefs.