Oh my, gun control laws must not be working! Obviously, if existing gun control laws aren't working, then the only "logical" solution is that we need more gun control laws, as the new ones will surely work better than the old ones! (/sarcasm)
You know the cops, could be a soft air. LOL
A single omnibus bill making it illegal to break any exisitng law should do the trick.
Not too complex; shouldn't need to run to more than about 41 pages....