AP source: 3 guns found in Connecticut school

NEWTOWN, Conn. (AP) -- A law enforcement official says that the Connecticut school shooter brought three guns into the elementary school where he killed 26 children and adults and that the weapons were registered to his slain mother.

The official was not authorized to discuss information with reporters and spoke on condition of anonymity.

The official says a Glock and a Sig Sauer, both pistols, and a .223-caliber Bushmaster rifle were found in the school after the massacre Friday.

The official says that a fourth weapon was found outside the school and that investigators have been going to shooting ranges and gun stores to see if Lanza had frequented them.