District, was irritated by a police raid led by Becker on one of his casinos and the damage they left. He complained to the press that Becker "collected 20 percent of the take" there. In July 1912, Becker was reported by the "New York World" as one of three senior police officials involved in extorting money from Rosenthal's casinos. The day that Rosenthal was due to testify to a grand jury, he was murdered at 2 am as he left the Hotel Metropole at 147 West 43rd Street, just off Times Square. Lefty Louie, Whitey Lewis, Dago Frank, and Gyp the Blood were seen to shoot him from their car, making no effort at disguise. They were separately tried, convicted, and sentenced to death and were ultimately executed.