AUGUSTA — An Augusta man arrested in May on charges alleging he threatened to kill a woman while brandishing a gun was recently indicted by a grand jury on charges he also raped the woman after he allegedly caused her to be impaired.

Ray C. Mack, 28, was indicted by a Kennebec County Grand Jury last week on two counts of gross sexual assault and one count each of criminal threatening with a dangerous weapon and possession of a firearm by a prohibited person.

The gross sexual assault charges allege Mack, on or between May 24 and 26, engaged in a sexual act with a woman who was unconscious or otherwise physically incapable of resisting and who had not consented to the sexual act. The indictment states that he allegedly impaired the woman’s “…power to appraise or control her sexual acts by furnishing, administering, or employing drugs, intoxicants, or other similar means.”

Mack was arrested in May by Augusta police who alleged, according to court papers, he had threatened to kill the woman while brandishing a gun, after he and another man discovered a text message on her phone from a friend of hers that said she would report drug dealing involving the three of them to police.

Police secured a search warrant and arrested Mack after searching a Waldo Street apartment where police said they found a handgun.

The possession of a firearm by a prohibited person indictment alleges Mack was in possession of a gun and he had been convicted, or found not criminally responsible by reason of insanity, of burglary, 2nd degree, in 2010 in New York.

An indictment is not a determination of guilt but indicates enough evidence exists for a case to proceed to trial.

Also indicted by the grand jury last week were:

• Rockne J. Albert, 60, of Augusta, criminal operating under the influence and operating beyond license condition or restriction, July 4 in Augusta.

• Andres W. Arias, 41, of Boca Raton, Florida, theft by unauthorized taking Sept. 1, 2020, in Winslow.

• Samuel Baker, 63, of Augusta, unlawful trafficking in schedule W drugs (fentanyl powder), June 29 in Augusta, aggravated trafficking in schedule W drugs (fentanyl powder), July 13 in Augusta, and trafficking in prison contraband (methamphetamine), July 14 in Augusta.

• Durrell Boyd, 27, of New York City, unlawful trafficking in schedule W drugs (cocaine base), unlawful trafficking in schedule W drugs (oxycodone), unlawful trafficking in schedule W drugs (seroquel), July 6 in Augusta, and criminal forfeiture of $2,135.

• Roger G. Briscoe III, 43, of New Sharon, unlawful possession of scheduled drug (fentanyl powder), and violation of condition of release, April 12 in Waterville.

• Patrick Burns, 60, of Augusta, unlawful trafficking in schedule W drugs (cocaine base) June 9 in Augusta, unlawful trafficking in schedule W drugs (cocaine base) June 29 in Augusta, unlawful trafficking in schedule W drugs (cocaine base) July 6 in Augusta, unlawful trafficking in schedule W drugs (oxycodone) July 6 in Augusta, unlawful trafficking in schedule W drugs (seroquel) July 6 in Augusta, and criminal forfeiture of $1,103.

• Taylor Campbell, 29, of Pittsfield, two counts of aggravated trafficking in schedule W drugs (fentanyl powder), July 8 in Oakland.

• John Cedeno, 25, of New York City, two counts of aggravated trafficking in schedule W drugs (cocaine), and one count of aggravated importation of scheduled drugs (cocaine), July 20 in Gardiner, and criminal forfeiture of $1,871.

• Chelsy Cochran, 33, of Winslow, aggravated trafficking on schedule W drugs (cocaine), and illegal importation of scheduled drugs (cocaine) July 20 in Gardiner, and criminal forfeiture of a 2007 Audi A6.

• Scott R. Coogan, 36, of Augusta, burglary, aggravated criminal trespass, assault, criminal mischief and theft by unauthorized taking, Aug. 1 in Augusta.

• Joel P. Curley, 60, of Boothbay, operating after revocation, improper plates and failure to give correct name, April 10 in Pittston.

• Robert O. Curtis, 22, of Winslow, criminal threatening with a dangerous weapon, a firearm, domestic violence assault and domestic violence criminal threatening, July 11 in Winslow.

• Nathaniel R. Dillon, 30, of Randolph, four counts of gross sexual assault, Aug. 27, 2020, to April 15, 2021, in Winthrop.

• Oscar G. Melgar Flores, 25, of Clinton, unlawful sexual contact, unlawful sexual touching, and furnishing liquor to a minor, April 3 in Clinton.

• Robert A. Fortin, 54, of Augusta, criminal operating under the influence, and operating beyond license condition or restriction, July 15 in Augusta.

• Gladys A. Fowler, 39, of Augusta, aggravated criminal trespass, assault, and violation of condition of release, Aug. 1 in Augusta.

• Edric Hewett, 40, of Philadelphia, Pennsylvania, aggravated trafficking in schedule W drugs (fentanyl powder), June 29, and two counts of aggravated trafficking in schedule W drugs (fentanyl powder), July 13, all in Augusta, and criminal forfeiture of $327.

• Emmanual Hurtado, 30, of Waterville, trafficking in prison contraband (a shank), criminal mischief, and violation of condition of release, July 19 in Augusta.

• Jacob Allen Kerby, 28, of Benton, possession of a firearm by a prohibited person, June 26 in Waterville.

• Jamilee Kus, 38, of Waterville, possession of a firearm by a prohibited person, Aug. 11 in Benton.

• Ritchard Laguer, 27, of Manhattan, New York, unlawful trafficking in schedule W drugs (cocaine base), unlawful trafficking in schedule W drugs (oxycodone), unlawful trafficking in schedule W drugs (seroquel), July 6 in Augusta, and criminal forfeiture of $1,515.65.

• Stephen M. Larrabee II, of Brooks, unlawful possession of scheduled drug (methamphetamine), June 3 in Waterville.

• Dustin W. Lee, 29, of China, eluding an officer, refusing to submit to arrest, and criminal speed, June 2o in China.

• Valerie Murphy Lowe, 56, of Augusta, domestic violence assault and assault, July 2 in Augusta.

• Joseph A. McGlashing, 39, of Oakland, theft by deception and two counts of home repair fraud, June 1 to Oct. 31, 2020, in Oakland.

• Miles Melvin McIntyre Jr., 61, of Wildomar, California, reckless conduct with a dangerous weapon, a tractor trailer, unlawful possession of scheduled drugs (methamphetamine), criminal operating under the influence and driving to endanger, Aug. 20 in Sidney.

• Jody P. Morris, 45, of Wayne, burglary and two counts of theft by unauthorized taking, Feb. 21-28, in Mount Vernon.

• Luke Brandon Park, 40, of Augusta, operating after revocation and violation of condition of release, July 14 in Augusta.

• Steven L. Peaslee, 28, of Augusta, domestic violence assault, criminal mischief and theft by unauthorized taking, May 14 in China.

• Rashard Perkins, 36, of Pittsfield, two counts of aggravated trafficking in schedule W drugs (fentanyl powder), July 8 in Oakland.

• Derek P. Poirier, 40, of Waterville, possession of a firearm by a prohibited person, operating after suspension and violation of condition of release, July 23 in Waterville.

• Nicholas A. Sapiel, 25, of Winslow, two counts of operating after revocation, June 19 in China.

• Paul J. Shea, 32, of Norwood, Massachusetts, aggravated trafficking in scheduled drugs (fentanyl powder), unlawful furnishing of scheduled drugs (cocaine base), unlawful furnishing of scheduled drugs (methamphetamine), unlawful possession of scheduled drugs (gabapentin), unlawful possession of scheduled drugs (Xanax), unlawful possession of scheduled drugs (suboxone), and violation of condition of release, Aug. 13 in Waterville, and criminal forfeiture of $16,194.

• Patrick D. Sonier, 51, of Benton, aggravated assault, domestic violence criminal threatening with a dangerous weapon, domestic violence assault and domestic violence terrorizing, Aug. 4 in Benton.

• Gary Wallace, 54, of Augusta, violation of condition of release, Aug. 19 in Augusta.

• Benjamin T. Watts II, 45, of Augusta, theft by unauthorized taking and violation of condition of release, May 28 in Augusta.

• Elmo Williams, 22, of Waterville, unlawful trafficking in schedule W drugs (cocaine base), June 9 in Augusta, unlawful trafficking in schedule W drugs (cocaine base), unlawful trafficking in schedule W drugs (oxycodone), unlawful trafficking in schedule W drugs (seroquel), July 6 in Augusta, and criminal forfeiture of $1,530.

• Joshua Dean Winter, 35, of Waterville, robbery, and two counts of criminal threatening, May 21 in Waterville.

• Scott P. Woodhouse, 40, of Waterville, unlawful possession of scheduled drug (fentanyl powder) and violation of condition of release, July 23 in Waterville.

• Sherrod S. Wright, 37, of Augusta, violation of a protective order and violation of condition of release, July 9 in Augusta, and violation of a protective order and violation of condition of release, July 14-24, in Augusta.

• Jefferson Young, 30, of Philadelphia, Pennsylvania, two counts of aggravated trafficking in schedule W drugs, July 13 in Augusta, and criminal forfeiture of $645.