In the late 19th century in New York City, Monk Eastman (who himself was most likely not Jewish) operated a powerful Jewish gang that competed with Italian and Irish gangs, notably Paul Kelly's Five Points Gang, for control of New York City's underworld. Another notorious gang, known as the Lenox Avenue Gang, led by Harry "Gyp the Blood" Horowitz, consisted of mostly Jewish members and some Italian members (such as Francesco Cirofisi). It was one of the most violent gangs of the early 20th century and became famous for the murder of gambler and gangster Herman Rosenthal.