A former Wiscasset man has been charged in connection with the gunshot wound police said his girlfriend received at her home in Gardiner on December 7, 2013.

A Kennebec County grand jury rose January 24 with an indictment charging Sean Kingston, 38, with aggravated assault with a firearm on Shawna Snyder; and reckless conduct, a lesser charge that alleges he created a substantial risk of injury to Snyder, with a firearm. Both charges refer to Snyder’s gunshot wound, Maeghan Maloney, district attorney for Kennebec and Somerset counties, said January 27.

Police have said that, at the time of the incident, Kingston was believed to have been splitting his time between living at Snyder’s home at 30 Costello Road, Gardiner, and a Wiscasset residence. The indictment lists the Costello Road address for Kingston.

The document also formally charges Kingston with the gun possession charge he was arrested on days after the incident. That charge is possession of a firearm by a prohibited person. Kingston has a prior felony conviction. According to Lincoln County Superior Court records, he pleaded guilty on November 8, 2010, to criminal threatening with a dangerous weapon.

A conviction on the new aggravated assault charge would be punishable by up to 10 years in prison,  Maloney said. Convictions on the charges of reckless conduct and gun possession by a prohibited person would each carry a sentence of up to five years.

Kingston was still being held at Kennebec County Correctional Facility in Augusta, in lieu of $2,500 bail on the December firearms charge, jail staff said.

Because he had not made the earlier bail, the district attorney’s office will not be seeking to increase the amount, Maloney said. Kingston is scheduled to be arraigned on the charges on February 11 in Kennebec County Superior Court.

According to a Gardiner police affidavit, Kingston and Snyder gave differing versions of how she received the gunshot wound. Kingston claimed the firearm went off for an unknown reason when he was moving the gun toward the headboard of a bed the two were on, the affidavit states. Snyder said the gun went off after she and Kingston found it in a field, according to the affidavit.

Snyder had surgery at a Lewiston hospital and was expected to recover from her injury, police have said.