This is truly sad to hear, from the info i read and heard the gunman Adam Lanza, most likely had a mental disability or developmental disorder or personality disorder. several who knew Lanza in high school had been told he had Asperger’s syndrome, a high functioning form of autism.
I all so read he had everal tell-tale signs of the disorder, often making those around him nervous because he was painfully shy and seemed to struggle to be social and form connections with people. It was evident Lanza “had a condition,” a neighbor tells the New York Post. You definitely notice it,” he added. Lanza was “kind of, like, needy. I wouldn’t say antisocial, but struggling to be social.” One “family insider” tells the New York Daily News Lanza “was a deeply disturbed kid,” who “had major issues” and “was subject to outbursts.” A 25-year-old neighbor who sometimes watched Adam Lanza when his mother would go out with friends said he was on medication, reports the Washington Post.
I go the above info here, he also killed him self after a total of 28 deaths
http://www.slate.com/blogs/the_slatest/2012/12/15/adam_lanza_motive_shooting_rampage_sandy_hook_elementary_still_unclear.html
there is more info on him, Its sad even with all the sign this kid had he should have had been in better care, also the guns were owned by his mother. there other sign for those who do own firearms really need to take better care of them so things like this don't happen. If you live in the USA all way lock your guns up tight. all way practice gun safety.
this will get a lot press on gun control ignoring the the real problem and root of why this happened. Its the same thing that happen few mouth ago the new batman movie came out the guy shot the theater up.
its sad, last year or early of this year a single mother raising a 6 mouth baby was attack in her home by two people she shot and killed the first attacker the other fled thanks to the gun she owned she was able to save her self and her child. If she did not have it she most likely be dead and her kid too. people kill, take guns a way and they will still kill. a gun is just the easy way and most common way of killing some one.
there always a way and when some one want to harm others they will do so no matter what. be it a gun, knife, bomb, or even a car.
I do hope you understand what I am trying to say. Thing like this will happen again best we can do is find the root of why thes action are being taken.
MARRY CHRISTMAS EVERY 
…..sorry guy I'm not on the menu lol 
