Well, well the obvious is finally come to gun control advocates. The problem I see is that there is a huge amount of people making a lot of money scaring and coercing local and state governments into passing gun laws and I don't see them giving up that gig any time soon. Yep Sarah Brady has a sweet gig. Sorry to her and her husband's injury due to that nut case but gun control would not have helped him a bit.
It could easily have made things worse: IIRC, Hinckley immaturely frittered away his money by buying cheap handguns as soon as he could afford them - three times. If the gun controllers had had their way and outlawed 'Saturday night specials', he would have been forced to wait until he could afford a quality gun that would have done a much more thorough job.