Trust the misnomer
That's essentially what's required. Lots of folks favor gun control because they believe gun control laws will eliminate or severely limit violence. The term "gun control" is a misnomer for several reasons.
First, gun control laws aim at controlling those who possess guns not the guns themselves. Realizing this deletes from the set of concepts the anthropomorphic ideas about guns. Guns don't cause people to become criminally antisocial and start shooting sprees.
Second, passing a new law(s) which aim(s) to interrupt a hypothetical sequence of events that lead to murder (which is already illegal) fundamentally affect more those not involved in the plan for any crime. Media campaigns which enlighten the misguided/uninformed are generally more successful than laws. I see ads in the media all the time relating to drunk driving, drug addiction, texting while driving... but I have yet to see an ad about difficult circumstances which could arise consequential to the casual sale, exchange or careless storage of firearms. I've seen ads about safe sex but not safe storage.
Third, doesn't it seem as an evidence against the actual premise of "control" that a law whose intended effect is some measure of positive control also having criminal penalties? If it is accepted that a particular law will change the behavior of most of those subject to the law such that certain negative (and already illegal) sequelae will be abated, it does seem rather contradictory to also add a criminal penalty as consequence of a conviction for breaking the law in question. If it is the existence of the law that brings about the desired "control" then a criminal penalty is superfluous. If it is the existence of the penalty that brings about the desired "control" then realize that those who are most responsible for the most heinous instances of crimes which these types of laws seek to abate will go unpunished because they are almost all killed by their own hand or by law enforcement.
Gun control is not only a misnomer but, in the philosophical sense, also an oxymoron.
= new reply since forum marked as read
I hope you don't mind if I interject here that I've observed a recent influx of visitors to this group and also a somewhat increased level of courtesy. Pleasant. 
To the point, How do you propose to decrease gun violence?
I do agree with most of the suggestions written in the posts I previously mentioned. The US, as a whole, has been making regular progress with these issues over the past few decades. Is there a subset of these issues, about which you feel progress is especially lacking?
...underwhelmed by the his replies. 
...no doubt inspired by the brave thought of hanging up the phone on Buzz Lightyear. 
Just an appendix: (third part) Those who seek to begin a high profile mass shooting and then simply vanish from the area will be arrested by numerous law enforcement officers, unimpressed by the suspect's claims of invisibility due to a functioning utility belt.
Firearm laws. I think one of the problems with the issue is the use of the term control. Control is just BS because, as the criminals and crazies demonstrate daily, they will do whatever the hell they please, screw the law. Let's get over it. Depending on their problem and inclinations, these folks will shoot you, borrow a book and never return it, pick their teeth in public, wear white shoes after Labor Day, rape your dog and French kiss your cat. They have no allegiance to lawfulness nor interest in you or the problems they will cause you. They're beyond control.
** Evening venting completed **
Thanks
Works for me.
Perhaps you need to formulate a survey to answer this question.
I guess these make us even:
me:
you:
touché