Officers found the victim at San Ramon and 4th Street in Northeast Fresno just before 4 a.m. Saturday.
Investigators are now looking for 27-year-old Alejandro Castro.
He's been identified as a person of interest in the case.
Fresno Police blocked off the area for several hours Saturday morning for their investigation.
So far, they've learned the victim was shot after being involved in a disturbance with a group of men.