CONYERS, Ga. -- Authorities say a man shot four people at two different locations before he was fatally shot by deputies in Rockdale County on Sunday.

According to officials on the scene, it began with an altercation at Magnet Package Liquor Store on Ga. Highway 20 and Bell Road. An altercation apparently occurred after a store clerk took 36-year-old Jeffrey Scott Pitts' identification.

Pitts left, but then returned with a large assault rifle. He allegedly opened fire killing a customer and shooting the clerk, who later died.

From there, authorities Pitts say returned to his home and shot his parents.

Investigators said Pitts fired at deputies and they fired back. Pitts was killed in the exchange of gunfire, officials said.

Pitts' parents were transported to an Atlanta-area hospital in stable condition, officials said.

The GBI is investigating the officer-involved shooting scene at the home.

Meanwhile, the Rockdale Sheriff's Office is investigating the crime scene at the liquor shop.

Employees of the liquor store said that Pitts was a regular at the store, but some had recently accused him of shoplifting.

All deputies involved in the shooting at the Ebenezer Road residence have been placed on paid administrative leave pending the outcome of a GBI investigation.