Based on past gun buybacks, NONE of those guns that Chicago took in could probably be fired. That's the repeating scenario at ALL of the buybacks. Folks bring in their absolute garbarge that they couldn't sell for $20 to have the taxpayers buy them for $200+. In fact, I know of several "collectors" that go looking for garbage guns for the explicit purpose building an inventory for profit at the taxpayers expense when the stupidass cops decide to waste our money on propaganda.
One more point, if someone is hellbent on killing someone, it's not just a gun that will be the weapon of choice. A baseball bat, a knife or a pipe will do the job just as well. I hate to cliche, but GUNS DON'T KILL PEOPLE, PEOPLE KILL PEOPLE. You could confiscate every fucking gun in the country and the murder rate won't change. Criminals will be the only ones left with guns (they will use them too) when our legal rights are stripped by liberal-peacenic dolts.
If you want to reduce crime and murder, make it a law that EVERYONE has to carry. That will make 99% of the idiot criminals think long and hard before they commit a crime. It's funny, when you know there's a good chance you'll die during committing a crime, you'll probably give up the idea. Think about it this way - How many times have you heard of some dumbass trying to go into a police station or military base to steal? Obivously, they don't because the odds of dying are so high. Conversely, think about some old lady or whimp walking down the street alone, an easy target, However, if it was manditory to carry a gun, even those types of people would become far less ripe as targets and criminals would think twice (or three times) about robbing them knowing there's a good chance the intended victim will resist or even kill them.
How many drive-by knifings have you read about in the news recently? Innocent bystanders killed in a knife fight...? A good question that I read recently was "If a child in the school yard is throwing rocks at other kids, does it maker sense to give rocks to all the other kids so they can defend themselves?" Look, I get it that the genie is out of the bottle in the USA in regards to guns - 250,000,000 in circulation last estimate - but when there's talk of gun regulation, it does not mean "blanket ban". Does the average citizen really need an AR-15 assault rifle with a large clip capable of firing shit-loads of rounds per minute?
Your question is moot...As long as he/she is a law abiding citizen they have the CONSTITUTIONAL RIGHT to own it... :)