As Americans paused for the one-week anniversary of the shootings at Sandy Hook Elementary School, new details emerged about the gunman.
Acquaintances recalled that Adam Lanza was able to take apart and reassemble a computer in a matter of minutes but rarely spoke to anyone.
Daniel Frost took a computer class with Lanza in high school. He said Lanza used to walk the hallways wearing the same green shirt and khaki pants every day. He hardly ever spoke to classmates and once gave a presentation entirely by computer, never uttering a single word.
A week ago, Lanza fatally shot his mother before blasting his way into the Connecticut school and killing 20 children and six teachers. As police approached, he fatally shot himself in the head.