@dfwdailybrief: Dallas police are investigating a deadly shooting in South Dallas after an argument between family members allegedly turned violent early Monday morning. Officers responded to a home in the 5100 block of Cardiff Street around 12:07 a.m., where they found a man in his 60s suffering from gunshot wounds in the doorway. Dallas Fire-Rescue pronounced him dead at the scene. � Fox 4 News Police say a man in his 30s, identified by investigators as the victim’s nephew, remained at the scene. He allegedly told officers that he and his uncle had gotten into a physical altercation before he fired the shot. He was taken into custody without incident and brought to police headquarters for questioning by homicide detectives. � Fox 4 News The identities of the suspect and victim had not been released pending family notification and formal charges. The information was reported by FOX 4 Dallas-Fort Worth�, citing Dallas police investigators.