GREEN BAY, WI (WTAQ) -Four people are being treated for serious injuries after an early morning shooting in Green Bay.  Green Bay police say the shooting happened about 12:15 a.m. this morning (SAT) in the area of Ashland Avenue and Walnut Street.  Cops say the victims were found at two different locations. All of them, two 17 year old males, a 21 and 23 year old male, were taken to local hospitals. Police say at this point no one is in custody.  At this point, police are not calling this a random act.