Simple Question

That politicians say that games with guns in are dangerous isn't something new, but after Counter Strike is now GTA the new Top Killer game. I heard about this theroy after I heard that a 8-year old boy shall kill an old lady with a gun and he played GTA before(Whereever he got the game, he is 10 year too young for it)
Well thats cruel and terrible but everybody think a moment, can a mouse, a keyboard, a controller or whatever you use to play a videogame teach you how to use a gun? I think not!
I must say, I NEVER played GTA in my life but it is still only a game not a killing simulator like many politicians think(not all of course but the most)