Here's a photo from Jacob Riis's 1890 classic "How the Other Half Lives," "an early publication... documenting squalid living conditions in New York City slums in the 1880s." It shows "Bandit’s Roost, at 59½ Mulberry Street (Mulberry Bend), was the most crime-ridden, dangerous part of all New York City."
Those guys are clearly total bad-asses.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.