" What followed would inaugurate one of the most spatially astonishing crime sprees in U.S. history. Nineteenth-century New York City police chief George Washington Walling estimated that Leslie and his gang were behind an incredible 80 percent of all bank robberies in the United States at the time, until Leslie’s betrayal in the spring of 1878. This would include the great Manhattan Savings Institution heist of October 1878, which netted nearly $3 million from one of the most impregnable buildings in North America. "

― , A Burglar's Guide to the City