R. Kelly Nephew SHOT During Robbery

R. Kelly's 15-year-old nephew was shot late last night -- and cops say he was trying to rob a barbershop.

The nephew was shot twice by the store owner, according to police -- but the victim's father Carey Kelly (R.'s brother) says the kid may have just been an innocent victim of someone else who was robbing the store.

The nephew is currently being treated at a Chicago area hospital for a chest wound.