And so on. A study of the source of weapons found at New York City crime scenes showed that most were purchased at gun stores in the South. This is also very common. A student who shot other high school students in the South some years ago had his uncle buy his weapon. New York City gang members enlist residents of Southern cities to buy their guns for them.
Gun shows are a special problem.
They are a glaring loophole in the federal gun laws. The idea is that private citizens may sell guns to one another without the need of dealer licenses or background checks. Shows are a nexus for these private sales, like a flea market for guns. We could all come to the Coliseum and exchange Seconal, Zoloft, Quaaludes. I don't need to be a physician or pharmacist, you don't need a prescription.