A wrap-up of overnight news from the Tribune’s breaking news desk:
* An 18-year-old was killed Saturday evening and two people were injured by gunfire early this morning, authorities said. Read more.
* Police will be canvassing the Belmont Cragin neighborhood on the Northwest Side this afternoon as part of their investigation into an early-morning sexual assault Tuesday that left a 15-year-old girl in critical condition. Read more.
* Police are searching for a missing boy they fear may not have the medical equipment he needs to treat his diabetes. Read more.
* An 11-year-old boy died Saturday afternoon after a traffic crash involving a stolen vehicle in the South Side’s Englewood neighborhood, police said. Read more.
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