Everyone needs to write & call their reps at both the state AND federal levels to reaffirm that we will not accept any encroachment upon our rights because of the evil acts of one deranged individual, as tragic and heart-wrenching as they are. Nevertheless, there is cause not to panic either. Dems only control one house of Congress, and with recent court victories and an overall dramatic shift in public opinion in favor of the 2A in the last decade, we are far better positioned to resist these nonsense "gun control" initiatives than we have ever been.
If anything does happen to materialize legislatively, it would be a perfect opportunity to rip a page from the antis' play book and sneak in a poison pill amendment into their proposed bill.
Let's see how much they'll want to ban AW's if it means killing the '86 MG ban, removing suppressors from the purview of the NFA, or enacting nationwide, shall-issue CCW.