Ryan Lanza NOT the school shooter, brother suspected

UPDATE: The gunman in the Connecticut school shootings has been identified as Adam Lanza, 20. His older brother's name was previously released, but that was corrected.

Related: Connecticut school shooting leaves at least 27 dead

Officials said that the gun used in the attacks was a .223-caliber rifle. The official also said that New Jersey state police are searching a location in that state in connection with the shootings, said by an official in Connecticut to have left 27 dead, including 18 children.

The official in Washington spoke on the condition of anonymity because the source was not authorized to speak on the record about the developing criminal investigation.

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Photos: Sandy Hook Connecticut school shooting pictures

 

AP, CBS