Ha funny how people who claim to not care about race are so obsessed with it in this case. The ultra right wing assholes want it to be a black/brown person. While the ultra left wing assholes want it to be a white person.
The way I look at it is this:
If they are foreign Muslim extremists, we're going to go ape-shit 9/11 on the Middle East, wrecking a path of destruction, with all out drone strikes killing tons of civilians to get our targets.
If they are domestic extreme right-wingers, we can come together as a country and reflect on the crazy anti-progressive rhetoric that has been poisoning political discourse for the past five years. The result hopefully being that Fox news and it's ilk will feel a bit more restrained in pushing their agenda of stomping out any sort of safety nets for the poor and working class by using absurd fear mongering to manipulate opinion.
So, yeah, I'm hoping it's domestic.