Authorities plan to add a fourth murder charge to two suspects in last week's quadruple shooting at a rural Henry County home.

“It could be added during the preliminary hearing later this month or the grand jury phase and I can’t predict when grand jury might get this case,” Henry Police Capt. Joey Smith told The Atlanta Journal-Constitution Wednesday.

Jacob Cole Kosky and Mathew Baker Jr. are scheduled for a 2 p.m. preliminary hearing on Nov. 21. The hearing was reset to give them time to confer with their public defenders. The pair already facing three counts of murder and four counts of aggravated assault. Kosky, believed to be the shooter, also is facing additional weapon possession charges.

They are charged in the deaths of Matthew Hicks, 18, of McDonough; Keith Gibson, 29, of Covington and Sophia Bullard, 20, of Thomason. The three were found dead at the home on Moccasin Gap Road. Destiny Olinger was airlifed to Grady Memorial Hospital in critical condition. She died Sunday. All four are said to have been shot at close range.

News of the latest charge comes as three of the shooting victims are laid to rest. The funeral for Gibson, a father of two, was set for 11 am. Wednesday at J.C. Harwell Funeral Home in Covington. Hicks’ funeral was slated for 2 p.m. Wednesday at Haistens Funeral & Cremations in McDonough. Hicks, known as “Matty”, loved the outdoors and enjoyed fishing, hunting, and shooting his bow, according to his obituary.

Services for Bullard, who would have turned 21 on Halloween, is Thursday at 11 a.m. in the chapel of Coggins Funeral Home in Thomaston. She was a vet-tech at McDonough Animal Hospital.

Funeral arrangements for Olinger were pending late Wednesday morning.