>almost as if the gun control laws work
What? How the fuck do you come to
that conclusion? If anything, it's proof that gun control laws
don't work, since people who want guns to do bad things will just find a way to get them anyway. Especially in the Internet Age,
where the knowledge to create guns can be found with a simple Google Search. Literally all one needs to do is find a suitably-sized pipe that can strike some contained powder to accelerate a projectile to lethal velocities.
And frankly, given how close this asshole was to Abe at the time, he probably didn't need to go through with building his own gun. He could just-as-easily had a sharp blade and bum-rushed him Otoya Yamaguchi-style, so the gun control comparison is completely moot.