Adam Lanza (20 years old) first shot his mother, Nancy Lanza at home. Nancy was a gun collector who would often take her kids target shooting and even taught them how to handle a gun.

Wish the story ended there but it didn't. He then went to the elementary school dressed in black battle fatigues and a military vest, forced his way in and opened fire killing 26 people. 20 of them were children.

http://www.chinilive.com/2012/12/us-mourns-elementary-school-massacre.htmlClick here to see their pictures, names and ages. Also watch President Obama's teary speech.