A motive. Damn! That's a toughie. What could possibly motivate a lonely young bed-pan changing ammosexual to steal his Libertarian father's AR-15 and shoot up a Trump rally?

In our discussions here at the Albaby household, I've taken pains to remind others that while it seems like an assassination attempt would always be politically motivated, it still sometimes happens that the target's politics aren't really a factor.

Often it's obviously and entirely because of the target's politics - for example, Booth killed Lincoln because he thought Lincoln was a tyrant. But sometimes it's not - Hinckley shot Reagan just because doing so would bring him fame/notoriety, not because of Reagan's politics. Sometimes it's....complicated, like with Squeaky Fromme - a disturbed person who apparently was a zealot about trees (which is a policy), but didn't have any especial complaint about Ford's policies towards trees. He just happened to be the President.

So until there's more information, literally anything could be on the table in terms of motive.