Excuse me??? This is a worthless murderous scum POS.
What's that got to do with music?
I'm hoping I'm missing some interesting double-entendre or irony in your remark, because otherwise, as a guitarist, I'm pretty offended by your comment. Should I be? What the heck are you talking about?
I think it’s the name of a popular video game.
Dude, I'm a working musician myself (Guitar, Bass). The "guitar hero" video game is about the most popular and best selling on the planet at the moment. Every kid knows all about it, and it wouldn't surprise me at all if that's exactly the game this guy was playing when he went into his murderous rage.
My reply was pure sarcasm which you will find in play on this forum in abundance, so before you go firing off flames at others you might want to chill out and do some checking first. Maybe try google or ask any kid.
Oh, and by the way,what does you knowing how to play a guitar have to do with anything?