CHELSEA, Mass. (AP) – A 17-year-old has pleaded not guilty to a charge of being an accessory before the fact in the fatal shooting of a Revere police officer.

Derek Lodie of Revere was ordered held without bail at his arraignment in Chelsea District Court on Tuesday.

Officer Daniel Talbot was shot once in the head early Saturday morning as he socialized with other off-duty officers near Revere High School.

A prosecutor said at Tuesday’s court hearing that Lodie approached the officers and started an argument, then called three friends, who came to the scene carrying weapons. One of Lodie’s friends shot Talbot, the prosecutor said.