Police say the man in the video without a shirt on got into an argument with a 51-year-old man inside a home on 53rd Street in Sunset Park last Monday.
That's when the suspect grabbed a pair of scissors and stabbed the other man in the back.
The victim was treated for a puncture wound at Maimonides Hospital.
Anyone with information in regard to the identity of the stabber is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782).
----------
* More Brooklyn news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube