Many Unanswered Questions In Newtown School Shooting
Description:He was a loner, a 20-year-old whom Newtown High School classmates remembered as a skinny, shaggy-haired boy "who never really talked at all" and who stayed tight to the corridor walls when he walked, often clutching his laptop.
Lanza kept to himself. Over several bloody minutes Friday morning, armed with a rifle, Lanza emerged from his shell long enough to destroy the lives of 20 first-graders and six adults at Sandy Hook Elementary School.(1:40)