NEW HAVEN, Conn. (AP) Newly released search warrants in the Newtown school shooting have revealed that gunman Adam Lanza's home was packed with weapons and ammunition, but the documents do not shed any new light on what could have driven him to slaughter 20 children and six educators inside an elementary school.

Lanza left behind journals, which state police turned over to the FBI for analysis, but if investigators have any ideas about his motive, they aren't saying.

Nicole Hockley, whose son Dylan was among the children killed at Sandy Hook Elementary School, said she has come to grips with the fact that she may never know why Lanza carried out the massacre. But she's focused on measures to prevent violence.