The crime happened around noon in the 2100 block of West Peterson Avenue in West Ridge, Chicago police said.
A 10-year-old chihuahua/beagle mix was inside a vehicle parked in a parking lot when it was taken, CPD said.
Police said the suspect is "25-35 years old, 6'0-6'4 tall, 160-180 pounds, long dreadlocks, wearing a white tank top, blue jeans, and white shoes."
No further information was available as Chicago police continue to investigate.
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