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Sheehan had been among a group of 13 law enforcement officers working to stop a pack of 25-30 reckless ATV and dirt bike riders late in the afternoon Feb. 24, 2018, on Interstate 93 south.
Sheehan fired a semi-automatic rifle he retrieved from his vehicle instead of the handgun officers carry at their hips. He was the only one to fire a weapon.
An investigation showed Sheehan fired two rounds. One of the bullets entered the side of the ATV’s tire, not the front, meaning the vehicle was parallel to Sheehan and not heading toward him, “thus not presenting the imminent danger” that would permit the use of “potentially deadly force in self-defense,” the press release said.
Sheehan has been suspended without pay since early 2018 because of a state police Internal Affairs investigation regarding inappropriate social media postings, Procopio said. Sheehan will remain suspended without pay during the course of the criminal proceedings and any subsequent internal investigation.
Eight of the ATV and dirt bike riders involved in the incident were arrested. Seven of their cases have been resolved, and one remains pending."
Sheehan came under fire after the Boston Globe reported that
he had a history of making racists posts online under the username, “Big Irish.” The “
MassCops” profile included posts calling people in particular neighborhoods, including Dorchester, “scumbags.”
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They don't like the Cop because someone outed him for posting on the internet calling some "residents" of Dorchester scumbags. Also he's involved in the OT scandal.
Massachusetts State Police Trooper Matthew Sheehan indicted after officer-involved shooting involving ATV rider