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The City of Highland Park said officers arrived on the scene within minutes and saw around 40 protesters, carrying banners and shouting "pro-Palestinian and antisemitic chants" using loudspeakers and drums, gathered on the sidewalk.
The ages of the victims range from 17 to 55.
Daniel B. Pederson, 42, of Chicago, was charged with one count of threatening a public official.
The Cook County Sheriff's Department said around 3 a.m., police responded to a report of shots fired in the 1400 block of Ambassador Lane in Ford Heights.
A group of survivors and families of children present that day are also part of the suit.
Chicago police said that around 4:43 a.m., a man was walking with two others when a car pulled up, and three people exited the vehicle.
The incident happened around 1:39 a.m. in the 200 block of West 63rd Street in the Englewood neighborhood.
Chicago police said the men, 40 and 24, were outside when they were both shot at by someone traveling in a vehicle.
Richard Orozco, 40, was arrested by the Chicago police Area 5 Homicide Support Team on Thursday just before 4 p.m. in the 4100 block of West Foster Avenue.
Chicago police arrested Marquan Jones, 17, on Thursday in the 2400 block of East 75th Street.
This week, the North Shore Mosquito Abatement District found the first West Nile virus-positive mosquitoes in their traps.
The list explores the unique takes on the dish from across America that has since become a "cooking style of its own."
Preliminary information says the woman was found unresponsive outside in the 6900 block of South Wabash Avenue just after 8 a.m.
The victim suffered a graze wound to the back of her neck, causing her to crash her car into another vehicle, police said.
Chicago police say the thieves would park their cars, then go up to the victim, pointing their guns, and demand their belongings.