Update 3: Adam had Aseprger Syndrome - a high functioning form of autism. In other words, watch as the debate rages over the traditional bogeyman of gun control, in a country with over three hundred million weapons, when we may well simply be talking about a mentally ill young adult.
Update 2 : NY Post now refuting CNN's initial report, and stating that the shooter's real name is Adam Lanza, not Ryan Lanza, who is instead brother of the latter. At this point there appears to be a ridiculous amount of confusion who did what, so it perhaps would be prudent on behalf of the authorities to double check this information before releasing it to the media.
Update: According to CNN the shooter's name is Ryan Lanza, out of New Jersey. Based on a White Pages reverse lookup there is an 18-24 year old Ryan Lanza living in Hoboken, NJ whose FaceBook profile lists Newtown, CT as his home city. Whether it is the same person remains to be confirmed officially.
Sadly, increasingly it appears that not a day, and certainly not a week can pass, in the US without news of some mass killing somewhere. Several days ago its was a mall in Oregon, and today it is a shooting rampage at the Sandy Hook Elementary school in Newtown, Connecticut. Here is what is known: the shooter, who CBS reports is a 20 year old from New Jersey, is reported to be dead. According to CBS 27 people are dead, of whom 18, Connecticut Post 27 people are dead, of whom 20 tragically, children. Among the dead are the principal and the school psychologist. The AP has already dubbed it "the worst school tragedy in American history."