Update: Officer Talbot died of his injuries last night, but there's little word about events leading up to the shooting.

Early this morning, someone shot Revere Police Officer Dan Talbot in the parking lot behind Revere High School.

Talbot, who was shot in the head, is now in critical condition, and police were questioning people in the area to find out what happened.

DA Dan Conley held a press conference, but the information was more about Talbot, who was with the gang unit, and less about who police are looking for because of the "sensitive nature" of the investigation.

Badge from the official site for the Revere Police Department. All charges alleged until proven under law.