Suspect Tasered After Allegedly Assaulting Police Officer

A Billerica Police officer was knocked unconscious by a liquor bottle in an altercation on Sunday night at an Argonne Road house, Billerica, according to Chief Daniel Rosa.

Officer Patrick O’Brien and Sgt. John Harring were investigating a report of a disturbance involving two men at a house. about 10:30 Sunday night.

As Officer O’Brien was speaking to the reporting party downstairs, Sgt. John Harring stood on the landing just inside the front door of the home.

Police said Daniel Zammuto, 25, of Billerica, who is a resident of the house, rapidly descended the stairs while swinging a glass bottle in his hand. The 6-foot-tall, nearly 200-pound Zammuto struck Sgt. Harring at least once on the top of his head with the liquor bottle, knocking him unconscious.

Zammuto allegedly tried to strike the sergeant multiple times, but Officer O’Brien heard the commotion and intervened, deploying his department-issued Taser to stop the suspect’s attack, according to authorities.

Zammuto was immobilized, handcuffed and arrested on assault and battery with a dangerous weapon and assault with intent to murder or maim.

“Officer O’Brien and Sgt. Harring were conducting their duties when a dangerous suspect attacked,” Chief Rosa said in a statement. “I wish to praise both officer for their professionalism and single out Officer O’Brien for stopping the attacker in his tracks. On behalf of the entire community, I wish Sgt. Harring a full and speedy recovery.”

Zammuto is scheduled to be arraigned Monday in Lowell District Court.

Sgt. Harring was transported from the scene by ambulance to Lahey Clinic in Burlington where he was treated for what were believed to be non-life threatening injuries.