Of COURSE they can influence kids!!
Anyone who says otherwise is either making money from them, playing them, or cant think straight. GTA 5 just out at midnight, kid gets stabbed on way home with it. Hope he is okay, but also hope this puts him off these types of arsehole breeding games. Incidentally, I'd be charging the creators with attempted murder also, they are directly responsible, no game, no stabbing. Sick of these companies and film makers putting out violent trash and then (whilst counting their gold) saying 'no, there's no link'. Maybe they don't see it, others do and have to live with it daily.