The attackers are all black, as far as the reports I have seen. Not sure about the race of all victims.
Via Daily Mail:
21-year-old man has appeared in court charged with slashing a 71-year-old woman in the face on a New York subway as fears of knife attacks plague the city.
Damon Knowles glowered as he stood in silence on Thursday to be arraigned.
He is accused of wielding the knife that left grandmother-of-nine Carmen Rivera needing 30 stitches in her face after an attack on the 6 train at 7.15am on Monday.
The incident was the fourth seemingly random slashing in as many weeks in the city.