A 48-year-old man is accused of killing a 62-year-old man who lives in the same apartment complex in Longview, Wash.

The Cowlitz County Sheriff's office says the victim died at St. John Hospital early Saturday while being treated for a gunshot wound to the abdomen. Investigators believe the two are related but did not release details. They were not immediately identified.

Deputies were called to the apartment late Friday after a witness reported seeing two men arguing and hearing a gunshot. The victim was taken to the hospital where he died.