A little past midnight, January 4, 1868, William Connell, age 21, was standing at the corner of Bowery and Bayard Streets, New York City, conversing with Maggie Brown and Emma Gardner, two young women in their teens. Richard Casey came up to them and flourished some bank notes in the faces of the women in an insulting manner, implying that they were prostitutes—which in fact they were. Connell took offense to the action and asked Casey what he meant by it. Casey asked if he was going to defend the women and Connell replied that he was a stranger there but did not like such conduct.
As Connell stooped to pick up his hat, Casey drew a revolver from a breast pocket and fired at his head. Connell cried out in agony and fell into the gutter; Casey shot him again. Then he pointed the pistol at Maggie Brown and said with a foul epithet, “I’ll finish you too.”