I suspect Lanza had nothing to do with the shootings and was a convenient scape goat found dead at the scene. This shooting was a blackop and it's quite obvious there were several actors involved who were the real trigger men.. but they will never be known because that's how the story supposed to go down.

It's always the lone nut theory pushed by the media because if it's more than two people that means there was planning involved and that scenario doesn't play along as well with anti-gun agenda.