Police said the boy was standing on the sidewalk in the 7600 block of South Colfax Avenue, holding a gun, when he accidentally shot himself in the foot around 12:15 a.m.
The firefighter, two children and one adult were hospitalized after a fire in the South Shore neighborhood.
The man approaches victims in a tan SUV, pulls over to talk to people on the sidewalk and identifies himself as an agent or “Officer Franklin,” according to a community alert from Area South detectives.
A 34-year-old man was in a parking lot near East 74th Street and South Colfax Avenue with another person at 9:38 a.m. when a light-colored SUV drove by and a person inside fired shots.
At least eight people have been wounded in shootings on the city’s South and West sides between Friday evening and Saturday afternoon.
Two firefighters were injured while battling a two-alarm fire and four people were displaced in the South Side South Chicago neighborhood early Sunday.
A 26-year-old man is in custody after abducting his ex-girlfriend and leading police on a more than one-mile chase on the South Side.