Most likely illegal,but before that gun was illegal it was owned by a legal gun owner.Ive stated in the past it is too easy for irresponsible people to get guns.I've stated in the past we need laws that make gun owners take full responsibility for whatever damage thier gun does.Gun owners should have to register thier guns with the ATF and once a year bring those guns to The ATF to confirm they still are in possession of them.If any of thier guns are missing they should lose thier right to own any gun for 5 years,second time lifetime ban.
If a gun a legal gun owner bought ends up in the hands of a criminal that gun owner should be civilly responsible for the damage that gun did,lifetime ban and I would even support criminal penalties.Conservatives will never go for this though.If thier gun ends up in the hands of a criminal so be it to them,they can just easily by another.Republicans don't even support background checks.Last I checked private and gun show sales without a background check was still legal allowing people like yesterdays shooter to by a gun from a classified ad in a wal mart parking lot.
We also need to make guns more expensive with a huge gun sale tax,that would make people more likely to secure thier guns.The average hand guns only costing 300-500 dollars to replace make people who aren't poor more careless with them because they don't cost much to replace,and as stated lawfully easy to replace.