The shooting happened shortly before 9 p.m. Friday on the 1800 block of North Summit Avenue. Area residents alerted police after hearing multiple gunshots.
Responding officers found two men, ages 55 and 32, with non life-threatening gunshot wounds. They were taken to Huntington Hospital. The 4-year-old, who also suffered a gunshot wound, was taken to the hospital by family members. All of the victims are expected to be OK.
Authorities say the victims were inside a garage-turned-game-room in the rear of a residence when they were shot.
"They were standing in this garage where a pool table was at which time shots were fired from the street area and three of the victims were struck by gunfire," Pasadena police Lt. Jason Clawson.
Police say they're looking for three men around 18-20 years old in connection with the shooting. Investigators described one of the suspects as having a shaved head and wearing a white T-shirt and black shorts. No descriptions were available for the other two suspects. Authorities say the three suspects were seen fleeing on foot following the incident.
It's unclear if the shooting was gang related.