Beers, music and food are all part of the annual outing.
The incidents remain unsolved.
The 3-year-old boy was critically wounded in the Friday night shooting.
The boy was out with his mom about 10:15 p.m. in Brighton Park when he was shot, police said.
Residents living under a new flight path to Midway gave noise commissioners an earful.
The most recent shooting occurred in Old Town in the 400 block of West Blackhawk Street.
The public is invited to Thursday's multi-agency Midway noise commission meeting.
The project that started last November is chugging along on schedule to wrap up in December.
A 30-year-old man was also injured in the shooting early Sunday morning.
The 24-year-old man has gang ties, a Chicago Police spokesman said.
The long-awaited renovations at Kelly Park on the Southwest Side could start Wednesday, officials said.
Developers have big plans for the corner of Pershing Road and Archer Avenue.
Jose Hernandez trains mariachi teachers across the country and has high hopes for Chicago's program.
The shootings spanned the city and occurred on the city's South, Southwest, West and Northwest sides.
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