A 21-year-old guy was detained in connection with a fatal armed robbery at a Georgia gun range that killed three family members, on Monday.

The Georgia Bureau of Investigation announced on Friday that Jacob Christian Muse, of College Park, has been charged with three charges of malice murder.

On the night of April 8, Grantville officers arrived at the Lock Stock & Barrel Shooting Range and discovered the deaths of the gun range’s owner, his wife, and grandson.

Thomas Hawk, 75, Evelyn Hawk, 75, and Luke Hawk, 17, were the three victims.

Up to 40 weapons were stolen, as well as the range’s surveillance camera, according to investigators.

The Hawk family was well-known and respected in their tiny, close-knit town, according to Police Chief Steve Whitlock.

Lock Stock & Barrel had been run by the Hawks for about 30 years.

Their grandson was on spring vacation and working at the shop with his grandparents.

Muse was arrested and put into the Coweta County Jail, according to authorities.

Authorities did not provide any other details on Muse’s arrest, and it was unclear whether he had an attorney available to comment.