Law enforcement agents gather outside the Lock Stock & Barrel Shooting Range.
CNN  — 

A Georgia man was arrested in connection with a shooting at a Grantville, Georgia, shooting range that resulted in three deaths earlier this month, authorities said.

Jacob Christian Muse, 21, faces three counts of “malice murder” in the shooting on April 8 at the Lock Stock & Barrel Shooting Range, according to a statement from Georgia Bureau of Investigations, the ATF and the Grantville Police Department on Friday.

Jacob Christian Muse was a customer at the store, police say.

It was unclear Tuesday whether Muse has an attorney. The Georgia Public Defender’s Office for Coweta County would not comment Tuesday on whether it is representing Muse.

The victims were the range owner, Tommy Hawk, his wife Evelyn – both 75 – and their 17-year-old grandson, Luke, according to officials. They were all shot inside the family business, authorities said.

The bodies were discovered by Coweta County Coroner Richard Hawk, son of the couple and father to Luke, according to the police.

Muse was a customer of the shooting range, having bought at least one gun there and spending time on the firing range, Grantville Police said in a news release. He previously lived in the town, which is about 50 miles southwest of Atlanta, police added.

A joint task force executed a search warrant on Muse’s College Park, Georgia, home where they found “handguns and long guns” that were taken from the shooting range, the police news release said.

CNN’s Amanda Musa contributed to this report.