The body of Philani Mdlangathi, 22, was found lying on the floor inside a house in Caluza on Saturday night, Captain Thulani Zwane said.
Mdlangathi was drinking with two men at his house when he got into an argument with one of the men about where to sleep.
During the argument Mdlangathi was shot in the neck.
Mdlangathi's friend called police and a 40-year-old man was arrested at the scene. He was found in possession of a firearm.