Cops caught the man who allegedly stabbed a woman with a flathead screwdriver in East Harlem on Wednesday evening. Ryan Watson, 31, has been charged with second-degree assault after the seemingly unprovoked attack, the NYPD said.

According to the Daily News, Watson repeatedly asked the victim "How you doing, miss?" as he stabbed her in the vestibule of a luxury building on East 110th Street between Lexington and Third Avenue around 5:20 p.m. Police do not believe Watson knew the victim.

A security camera video released by the NYPD shows a man stabbing the victim, a 58-year-old woman who works with the Department of Health and Mental Hygiene in the asthma center on the ground floor of the building.

Tiffany Loria, a resident of the building, said the first set of doors are always unlocked. According to Loria, the building's lobby attendant witnessed the attack and immediately intervened, causing the man to flee.

The victim had only recently returned to work after two months of medical leave, the News reports. She suffered a puncture wound on her thigh as well as small lacerations during the assault and was taken to Mount Sinai in stable condition.