They say the man, caught on surveillance video, lit trash on fire in three different locations.
They all happened in the span of about thirty minutes, early in the morning on Nov. 16.
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The man was wearing a fedora hat and carrying a guitar case on his back.
He had medium-length hair and a possible mustache.
Chicago police said the incidents took place at the following times and locations:
- 2:45 a.m. in the 1300-block of West Early Avenue
- 2:55 a.m. in the 5600-block of North Ridge Avenue
- 3:20 a.m. in the 5800-block of North Glenwood Avenue
Anyone with information is asked to call CPD at (312-746- 7618) or submit an anonymous tip at CPDTIP.com.