Three Pennsylvania residents were left dead following an argument over snow disposal.

KDKA reports the incident began Monday morning in Plains Township, as James Goy and Lisa Goy were shoveling snow off their driveway. Authorities say the couple was soon confronted by their neighbor Jeffrey Spaide, who accused them of dumping snow onto his property. The neighbors reportedly got into a heated dispute, which led Spaide to retrieve a handgun from inside his house. The man allegedly fired the weapon at the husband and wife until there were no bullets left. Investigators say Spaide then went back inside to get an AR-15-type rifle, and then returned to fire two more shots at James Goy and Lisa Goy, each.