Police said on Saturday that suspected gunman Adam Lanza forced his way into the Sandy Hook Elementary School before going on a shooting rampage that killed 26 people, including 20 children. Those who knew Lanza said Saturday that he was "deeply disturbed" and "subject to outbursts,” and that he had "a lot of mental problems." Lanza also reportedly shot and killed his mother, who was suspected to have been connected to the school, although there are conflicting reports about her exact role there. The firearms Lanza allegedly used were purchased legally by his mother.
Aftermath David Goldman/AP