Police say the suspect followed a 41-year-old woman into her apartment building, then exposed himself, grabbed the woman from behind and rubbed up against her repeatedly.
It happened back in September near East Clarke Place and Walton Avenue in the Concourse section.
The NYPD issued the following description of the suspect:
Male, black, approximately 5'8", 20 to 25 years-old, black hair. He was last seen wearing a black t-shirt, black sweatpants, and gray sneakers.
Anyone with information in regards to this incident is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).