First I would like to say, as a parent, that if you have violent video games (GTA, MW2, Battlefield, etc) in your house and your kids are under 17, why did you buy them in the first place? Last I checked there is a big M on the back, pay attention to rating systems if you go to the movies and buy a rated R movie ticket for your 12 year old its the same thing as buying a M rated game for them. Go buy a used Wii and get Mario, Zelda and the hundreds of other games that are made for kids. Then when your kid sits down to play, play with them, be a part of their life.
Second, it's a nice gesture, but unfortunately the media and the general public are likely going to get the wrong message. They are going to see it as finger pointing, as much as your intentions are good, at the end of the day once that message has been passed from media outlet to media outlet it will be lost and miss-communicated.
Lastly, when do we really start talking about the real problems ... the kid had mental issues and his mother showed him how to use guns. How is that ever a bright idea? If she wanted to connect with her kid, she could have just learned how to play violent video games with him and maybe this wouldn't have happened in the first place. People have been killing people for millions of years, but now we have the media around to trump it up and air it to the world for weeks on end giving other people with serious problems the idea that this is how they can make a point. I am in no way saying the media is a cause, but they do give these people an audience, and in a sad sense immortalize them.
At the end of the day this was a horrible tragedy, no level of gun control would have kept it from happening, no metal detectors would have kept him out, locks do nothing when windows can be broken, its just horrible. I look at my 4 year old and can't even fathom how the parents of those kids feel.