EVERGREEN, Ala. — A man and woman were shot dead after an argument that witnesses said started over an Alabama-LSU football game, but sheriff's investigators said Monday they continued to investigate the motive.

The Conecuh County sheriff's office identified the victims as Dennis James Smith, 41, and Donna Kaye Hall Smith, 39, of Brewton. The two were shot to death about 7 p.m. Saturday in the rural community of Owassa in southern Alabama.

Michael W. Williams, 28, was arrested and charged with two counts of murder over the shooting at his home, where he had watched the game. He was being held Monday without bond. A sheriff's investigator handling the case did not know if he had an attorney.

An investigator said Monday that people watching the game at Williams' home said the dispute was over the game, which Alabama won 27-21 in overtime Saturday, but an investigation into the motive was not complete. The investigator also said alcohol may have been a factor.

According to witness accounts to investigators, Dennis Smith, an LSU fan, called Williams, an Alabama fan, after the game, and the Smiths then went to Williams' home, where a physical altercation led to the shooting.

Investigators said Dennis Smith had a pistol and Williams had a shotgun and fired.

Authorities said Donna Smith was a relative of Williams' girlfriend.

Relatives of both the victims and the suspect either declined comment or did not immediately return phone messages Monday from The Associated Press.