Well, I agree with you on this one Arbre.
I'm of two minds about this though. On the one hand, I think that parents just don't pay attention to their kids anymore. Or maybe they never did, I don't know, but they certainly aren't these days. Slapping more rules and restrictions on games won't fix that. I highly doubt that a video game can turn a "little professor" into a killer, there must have been something else going on or the kid was just bloody nuts. I'm not blaming the parents, this is clearly a surprise to them and there is no reason to think that they were negligent either, but clearly their son had major issues.
On the other hand, games do teach you things. Rainbow Six taught me more about modern weapons that some one like me (not in the armed forces) would know otherwise. Sure, it's not 100% accurate, but I bet you I could figure out how to unlock, load and shoot a gun pretty quickly in real life because of what I have seen in video games. Not as well as someone with formal training, but good enough to hurt people.
You can't say that games are this panacea of education and we should all use videogames to teach everything under the sun in the future, without also asking what are all the mainstream videogames teaching us today? When I was young I was very socially inept (to say the least) and I would go home after school and play adventure games. I honestly believe that adventure games are how I learned how to talk to people (I'm talking about the ones with dialogue trees here), and what turned me into the witty charm-machine that I am today. What do kids play today that doesn't involve massive death and destruction? If I grew up 10-20 years later, what would I have had to turn to? Maybe if all I had to play was shooters I would have ended up more violent too (or at least less intelligent)?