it's a tough call because this shooter could lead to discussions on immigration and refugee programs. It would be better for all involved if the shooter looked like Charlie Baker. I don't think, though, that they will want to lose the momentum on gun control. If the Syrian was a Christian, that will be played up while his Syrian origin under whatever program gets obscured.
If this guy is a durka they will punt hard. The antis might not, but the politicians and MSM will. Antis are going to be " disappointed. "