A Spokane Valley man is in custody after authorities say he fatally shot a relative with a shotgun Tuesday afternoon. Spokane County sheriff’s deputies responded to the shooting call at 4:30 p.m. at the corner of East 31st Avenue and South Vercler Road, just across the street from University High School, Deputy Craig Chamberlin said. The suspect, who has not been identified, called to report that he shot a man in the stomach outside his home. The two had been arguing when the suspect went to his car, grabbed a shotgun, and shot the man, Chamberlin said. The victim died in a local hospital. The victim is believed to be the suspect’s brother, though deputies have not confirmed their relationship. The area will likely be closed for several hours as deputies continue to investigate.