Officials identified the suspect on Thursday as 21-year-old Suisun City resident Jehad Eid. They say he died after being rushed to the hospital.
According to police, officers responded to the barber shop in the city's Crocker-Amazon neighborhood around 4:30 p.m. after someone called 911 to report a man with a gun.
Police are asking people to come forward and help them piece together what happened.
Click here for the full story.