Rochester police say one man is dead, and three people are in the hospital, following a quadruple shooting outside the Baden Street Recreation Center.
It happened during a fight on the basketball court around 2:45 this morning.
A 24-year-old man died at the hospital.
Two men, and a woman, showed up on their own at area hospitals with gunshot wounds.
They are expected to recover.
Police say there was a hostile crowd of at least 200 people at the shooting scene, and the ambulance crew could not safely get to the dying man.
Officers in a patrol car had to get the man out and get him to the hospital.
There have been 37 homicides in Rochester this year.
There were 40 at this time last year.