Trooper Stops Domestic Assault on Route 2, is Attacked by and Subsequently Subdues Suspect

At approximately 1:10 p.m. Sunday, Massachusetts State Police Trooper Michael Sierra was patrolling on Route 2 eastbound in Lexington when he observed a 2009 Nissan Altima sedan stopped on the side of the roadway near Exit 52A. When Trooper Sierra stopped and walked up to the Altima, he observed a man and two women inside the car. 

As Trooper Sierra approached, the man exited the car and charged at the Trooper. The suspect assaulted and struggled with the Trooper in the right travel lane. The Trooper, drawing on his training in defensive tactics, subdued the aggressor and placed him into custody.

Other Troopers responded to assist, as did Lexington Firefighters and EMS. 

Subsequent investigation indicates that the suspect, identified as a 30-year-old Lowell resident, was committing a domestic assault against both female passengers when Trooper Sierra observed them and took action. One victim, a 29-year-old Woburn woman, is a friend of the suspect; the other, a 57-year-old Burlington woman, is a relative. 

The suspect, who was the operator of the Altima, was also determined to be under the influence of drugs. 

The suspect was transported by ambulance to Lahey Hospital in Burlington for a psychiatric evaluation. State Police will charge him with the following offenses:
1. Assault and Battery with a Dangerous Weapon;
2. Assault and Battery on a Police Officer;
3. Domestic Assault and Battery;
4. Operating Under the Influence of Drugs; and 
5. Disorderly Conduct. 

The suspect remains hospitalized at this time. His name is not being released because of a state law that prohibits police from releasing names of domestic violence offenders in order to protect victims’ privacy. 

The older passenger was transported to Lahey Hospital for evaluation of injuries. The younger passenger declined medical attention. She was determined to be the subject of an outstanding warrant, and she was arrested as such and taken to State Police-Concord for booking. 

No further information is being released at this time.