A 30-year-old man was slashed on the left hand on Nov. 19 inside 299 Utica Ave, according to the NYPD.
EMS took the victim to NYC Health and Hospitals/Kings County in stable condition.
Police say the assailant was last seen wearing all black and rode away from the scene on a Razor scooter.
The NYPD asks anyone with information to call its Crime Stoppers Hotline at 1-800-577-TIPS (8477).