If I had an answer you would tell me I was wrong anyway.
Do I know how to get every illegal gun off the street? No! Neither do you! I do know the best way to keep new illegal guns off the street... limit the number owned by any one person and treat them all the same, same process for every gun.
We all seem to realize there is a problem but yet several thousand more new guns get stamped out every day in the hopes they will become "legal" and land in the hand or "responsible law abiding citizens". And that is all... we HOPE they land that way, but you seem unwilling to to waver from the stance that we should produce those guns so that "law abiding citizens" have a chance to buy them, all while basically refusing to admit that this overabundance of guns IS THE PROBLEM.
I skip over the mental illness part because it is secondary to the real problem. You harped on CHicago yourself... 517 was it? 27 killed due to mental illness in one day is a great tragdy Will, but you are right 517 is even greater, but no one is invoking mental illness in the 517. That is why I "skip" over that issue... it is highly irrelevant when compared to the total body county created by the problem. A lack of sensible gun control that has lead to a staggering numbers of illegal guns.