The guns used were purchased legally in California before being modified, authorities have said.
Oh. Really?
So where the "modifications" legal?
No. They were purchased and then ILLEGALLY modified.
Gee, Sacramento Bee, why didn't you--or the authorities you quote--mention this salient fact?
Could it be because logical people would wonder, if your already imposed gun control law is so broken, what will passing more laws do for those criminals/terrorists who already break existing law????
This is the crux of gun control.
It doesn't keep criminals from continuing criminal acts.
Only the law abiding, who don't murder to begin with, are hindered by such laws.
Their ultimate goal is not control or administrative law, but confiscation.
For, they know as long as Americans have these weapons, they will be powerless to effect "real change".