I've seen suggestions only; that it was used in the shootings and/or that it was in the trunk of his car...
Seems to me that the two 9mm would have been used and the .223 left behind.
I’m pretty sure there were two ARs involved, one he used, one left in the trunk.
There is a crying need for a real news organization to assemble “known knowns” on this story since the early reporting was so inaccurate. Unfortunately we are pretty short on real news organizations in this country.
It is a sad thing.
Yes. Lanza used it in the school. He had a semi-auto shotgun locked in his car.