Dorchester Man Charged in 2021 Roxbury Homicide

Marc Lamothe, 46, of Dorchester, has been arrested and indicted on charges of murder and unlawful possession of a firearm for the 2021 shooting death of 29-year-old Joshua Smith in Roxbury. The incident occurred early on July 5, 2021, near 122 Seaver Street, where Smith was found with multiple gunshot wounds and was pronounced dead at the scene. Reports indicate Smith was also struck by a vehicle during the event. The Suffolk County Grand Jury returned indictments against Lamothe on June 27, 2025, following an extensive investigation by the Boston Police Homicide Unit. Lamothe is scheduled to be arraigned in Suffolk Superior Court. Additional details about the case are expected during the arraignment.