He was inspired by the Norwegian mass murderer, say authorities.
Adam Lanza believed he was in ghoulish competition with Anders Breivik, who carried out a bloodbath at two locations in July 2011, law enforcement sources told CBS News.
Breivik, a paranoid ultra nationalist, fatally shot 69 people at a summer camp after murdering eight others in downtown Oslo.
Lanza wanted to exceed Breivik’s death toll, according to investigators.
He chose the Sandy Hook (Conn.) Elementary School because it was the “easiest target” with the “largest cluster of people,” two officials who have been briefed about the investigation said.
Lanza saw his victims as characters in a shooting video game and the higher the death toll, the better his “score.”