Just like the Omar Mateen who possessed no criminal record at all, few, if any, shootings have been perpetrated by people who legally possessed a weapon that otherwise would have been ineligible because they possessed a misdemeanor "hate" conviction.
It's a solution looking for a problem, grass and gratuitous gun control grandstanding aimed at ideologues and the uninformed, has little chance of passing in Congress, and just the attempt to pass such useless laws will do little but energize pro-gun rights people in the upcoming election, many of whom are in important swing states and will definitely not support Democrats.
In fact, I don't believe there's been a single law that could remotely pass constitutional muster proposed recently that would have prevented the recent shooting, including an new AWB, as even the most common pistols in civilian hands are capable of firing with the same rate of fire as any "scary black rifle" (semi-automatic: one pull of the trigger, one shot), or a prohibition on the purchase of weapons by anyone on the various and generally secret and unappealable government "watch lists." Note that Mateen also carried a Glock 17, one of the most popular pistols in the world, during the attack, and he was removed from government lists when the FBI determined his contacts with an alleged suicide bomber had been minimal.
http://www.latimes.com/nation/la-na-orlando-nightclub-shooting-live-omar-mateen-was-taken-off-a-terrorist-1465772737-htmlstory.html
I'll begin to take gun control advocates seriously when they actually begin to propose laws that have a reasonable chance of successfully reducing gun violence or crime generally and are carefully targeted at those who actually commit such violence without impeding the rights of tens of millions of other law-abiding Americans.
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