The “Saturday night specials” were against the law in Peoria, Illinois, when we lived in the area (probably still are, I doubt that any place in Illinois has become any friendlier to arms in the intervening time). A lot of poor people on the “South Side” had them; high crime area, and they had them for self-protection. Well, there was an incident in the area of a 13-year-old girl shooting someone. The howl went up about the need for more anti-gun laws; - but looking at the situation carefully, the girl had stolen the gun (isn’t theft illegal?) from her grandmother - who owned the gun “illegally.” How would more anti-gun laws have prevented them? The girl had broken a law to obtain it, and her grandmother had broken a law by owning it.
And the person who sold it to her grandmother broke a law, first by owning it - assuming he lived in the area, which he probably did - and broke a law in selling it to her grandmother. There were at least 4 laws broken. I think I pointed that out to a neighbor who said we needed more gun-control laws. I don’t really remember what I said, that was about 45 years ago.