The robberies happened in Austin and Garfield Park at the following times and locations:
- 4300-block of W. Washington Blvd. on June 5 at 12:25 p.m.
- 4400-block of W. Monroe on June 5 at 4:10 p.m.
- 0-100-block of S. Kilbourn on June 5 at 4:11 p.m.
- 4600-block of W. Maypole on June 8 at 5:26 p.m.
In two cases, the victims were construction workers, and another person had their vehicle taken.
The suspect wore a dark gray hoodie and a black surgical mask.
Police urged anyone with information to contact them at 312-746-8253 or submit an anonymous tip at CPDTIP.com.
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