A man who was shot Monday while arguing with his girlfriend's father has died of his injuries, the North Charleston Police Department said.

The alleged shooter, 57-year-old Walter Graham of Hottinger Avenue in North Charleston, is charged with murder and possession of a firearm during a violent crime, jail records show. The man he is accused of killing was identified as 31-year-old Markay Perez Deveaux of Bamburg Avenue.

The shooting occurred around 1 p.m. Monday outside the Siesta Motor Lodge at 4044 Rivers Ave., police said.

Police spokesman Spencer Pryor said investigators determined that Deveaux was in a relationship with Graham's adult daughter. The two men got into a fight shortly before the lone shot was fired, Pryor said.

A half dozen people who called 911 recounted seeing the shooting, then watching as the gunman walked away.

"The dude is walking out of the parking lot with a gun," one woman told a dispatcher. "Hurry up. Hurry up."

In the background, the victim's girlfriend screamed. Men and women prayed. A motel employee tended to Deveaux, who was suffering a gunshot wound to his stomach and lying under an outside stairwell.

"The guy is walking down the street with the gun," one man said in a 911 call.

Another man tried to approach the gunman as he took a left out of the motel parking lot and walked toward a nearby Captain D's restaurant, according to the 911 calls.

"What the (expletive) is wrong with you?" one man told the shooter. "Put the gun down, man."

Officers who responded to the motel found a man with a single gunshot wound to his abdomen, an incident report stated. He was taken to Medical University Hospital in serious condition, and he later died of his injuries, police said.

Authorities found Graham standing in a lane on Rivers Avenue and waving a hand at passing vehicles. The barrel of a gun was sticking out of his military-style camouflage jacket, they said.

The officers found four live .38-caliber rounds and one spent shell casing still in the gun, they reported.

Graham was being held Tuesday at the Charleston County jail.

Pryor did not say whether Deveaux was armed. The shooting remains under investigation, he said.

Andrew Knapp contributed to this report.