A man allegedly shot by rapper Proof, shortly before Proof was himself shot and killed, has died in hospital.
Keith Bender was a former sergeant with the US Army
Army veteran Keith Bender, 35, had been in a critical condition since being shot in the head at the CCC nightclub in Detroit, Michigan, one week ago.
Police said witnesses reported that Proof shot Mr Bender during a dispute and was then shot himself by Mr Bender's cousin, Mario Etheridge, 28.
Mr Etheridge has been charged with discharging a firearm in a building.
He has also been charged with carrying a concealed weapon. Mr Etheridge has pleaded not guilty to both counts.
Mr Bender died from a gunshot wound early Tuesday morning, according to a spokeswoman at Detroit's St John Hospital and Medical Center.
Proof - real name Deshaun Holton - was a close friend of US star Eminem and a member of his rap collective D12.
Rapper Proof had a small role in the 2002 film 8 Mile
Eminem has paid tribute to his friend, who acted as best man at his recent remarriage to first wife Kimberly Mathers.
"He will be missed as a friend, father and both the heart and ambassador of Detroit hip-hop," said the singer in a message on the D12 website.
"Proof was funny, he was smart, he was charming. He inspired everyone around him."
The funeral is due to take place on Wednesday.