A shooting later Sunday afternoon in southeast Auburn killed one man and left his brother fighting for his life in a Seattle hospital.

Shortly after the shooting, Auburn police took an unidentified 18-year-old man into custody.

Police have not yet released the names or ages of the victims, but according to media reports, both are brothers of Auburn High standout lineman Danny Shelton, a blue-chip football recruit recently signed by the University of Washington.

Responding at about 5 p.m. to a report of shots fired in the 3400 block of C Court Southeast, police discovered two men in their 20s bleeding from gunshot wounds.

Medics treated both victims before transporting them to Harborview Medical Center in Seattle. The hospital first listed one man in critical condition with a gunshot wound to the head, but he later died. His brother remains in serious condition with a gunshot wound to the chest.

Doctors are treating the suspected shooter for non-life threatening injuries and police expect to book him into jail once he is released from the hospital.

Auburn police are trying to piece together what happened and how the victims were pulled into the confrontation.

“There were two incidents, the first one involved individuals from two families that were fighting about something that had do with their children, but I will not get into details on that,” said Auburn Police Commander Mike Hirman. “Anyway, individuals from two families got into a fight a block or two from where the shooting would take place. Somehow the confrontation became directed at an individual involved in that fight or someone passing by, and it moved to this duplex. The confrontation ensued at this house, somebody inside produced a handgun, and during the confrontation at the residence, the individual inside the house opened fire on the victim. One of the victims was hit in the head and later died, the other was hit in the chest and is in the hospital.”

King County Prosecutor Spokesman Ian Goodhew confirmed that the suspected gunman told police he had shot at the two men in self-defense. The alleged shooter also told authorities that the fight had started between his little brother and a neighborhood girl and it escalated into a melee involving the victim’s family.

The Auburn Police Department Major Crimes Unit and the Crime Scene Response Team are investigating the scene and contacting possible witnesses. Hirman said police recovered a 9-mm handgun, which they believe to be the weapon involved in the shooting,

The alleged shooter’s first court appearance is at 2:15 p.m. Tuesday in courtroom GB at the Norm Maleng Regional Justice Center in Kent.