BATH, Maine — A 23-year-old Thomaston man has been indicted on one count of manslaughter for the November 2015 shooting death of his girlfriend in the parking lot of the Bath Shaw’s Supermarket.

Dylan Grubbs was also indicted on one count of felony possession of a firearm by a prohibited person, according to the indictment handed up Thursday by a Sagadahoc County grand jury. Grubbs was convicted in 2006 of criminal threatening with a dangerous weapon.

Grubbs is charged with reckless or criminal negligence in causing the Nov. 16, 2015, death of 22-year-old Chelsea Jones of Thomaston, who police said was sitting in Grubbs’ sport utility vehicle in the supermarket’s parking lot when he shot her in the head while showing a 9 mm Taurus handgun to a prospective buyer.

Police said at the time that the gun apparently discharged accidentally.

Jones remained in critical condition at Maine Medical Center until she died on Nov. 19.

Jones and Grubbs are parents of two young children. They had recently moved to Thomaston. She worked at the McDonald’s restaurant in Thomaston at the time of her death.

Grubbs was arrested at his home Thursday afternoon and remained at Two Bridges Regional Jail in Wiscasset on Thursday afternoon, according to Stephen McCausland, spokesman for the Maine Department of Public Safety. Bail was set at $75,000 cash.