Massachusetts State Police announced Monday they arrested a third suspect wanted in connection with a shooting at a CVS in Stoughton last Thursday.
Marcus Pierre-Louis, 23, the suspected gunman in the shooting, was taken into custody at 7:20 p.m. at a Normandy Street residence in Dorchester.
Police said at the time of his arrest, Pierre-Louis was in possession of a loaded firearm. He was taken into custody without incident.
Authorities said the gun will be tested to determine if it was the weapon used in the CVS shooting.
Two minors were arrested last week in connection with the shooting after an 18-year-old man was shot in the shoulder inside the store.
Pierre-Louis will be arraigned in Stoughton District Court on Tuesday where he is expected to be charged with attempted murder, illegal possession of a firearm, illegal possession of ammunition, contributing to the delinquency of a minor and child endangerment.