Residents of the building noticed a man was trying to look under doors and reported it to the building's superintendent, police said.
The superintendent reviewed video surveillance footage and saw a man look under a number of apartment doors on multiple days, police said. The man was identified as the son of a woman who lives in the building, police said.
Officers were called over the weekend, and when they arrived at the downtown building the man was spotted in the building, police said.
When approached by officers, the man said he had been looking underneath doors while searching for a white man who he said had stolen items from him two weeks ago, police said.
Officers told him to stay away from the building, and the investigation is continuing, police said.
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