Anybody who says Trump isn't radicalizing these fools into action is a damn lie.
I'm sorry, it really seems like with someone like him as president it's a perfect storm for more disasters like this to happen. Trump doesn't specifically incite violence, but he works in the way that promotes stochastic terrorism by inciting others to violent action through demonization of specific groups and inidviduals. The President calls hispanics "vermin", "rapists" and other dehumanizing terms...what the fukk do you expect to happen? Ofcourse his supporters are going to see him saying this as President as an excuse and/or justification to get violent against people. He's the President, he promotes hate and division and profits from it.
Add a flawed racist system in America that puts white males on the top of the foodchain, makes them feel slighted when they don't reach the expectations provided to be there, and gives the privilege to avoid being profiled for criminal activity and actually promotes the sale of guns to them...this was bound to happen. I've been thinking about it since Columbine, since every shooting that's happened since then, since Trump took office, and now.
Sorry for the lengthy post...RIP to the victims of another unfortunate tragedy that has become the new normal.