First, it was between two suspected gang members, and then between one of the gunmen and police officers.
Newscopter 7 was over the Brownsville section as detectives investigated the shooting near Hegeman Avenue and Osborn Street.
One of the suspect's is a 21 year old man.
He is in critical condition as detectives try to determine if the bullet that stuck him came from an officers gun or from the other suspect.
No officers were injured.