By 1957, Genovese felt strong enough to move against Luciano and his acting boss, Costello. He was aided in this move by Anastasia family underboss Carlo Gambino. On May 2, 1957, following Genovese's orders, Vincent "Chin" Gigante ambushed Costello in the lobby of his Central Park apartment building, The Majestic. Gigante called out, "This is for you, Frank," and as Costello turned, shot him in the head. After firing his weapon, Gigante quickly left, thinking he had killed Costello. However, the bullet had just grazed Costello's head and he was not seriously injured. Although Costello refused to cooperate with the police, Gigante was arrested for attempted murder. Gigante was acquitted at trial, thanking Costello in the courtroom after the verdict. Costello was allowed to retire after conceding control of what is called today the Genovese crime family to Genovese. Luciano was powerless to stop it.
May 22, 1957: a 42,000-pound (19,000 kg) Mark-17 hydrogen bomb accidentally fell from a bomber near Albuquerque, New Mexico. The detonation of the device's conventional explosives destroyed it on impact and formed a crater 25 feet (7.6 m) in diameter on land owned by the University of New Mexico. According to a researcher at the Natural Resources Defense Council, it was one of the most powerful bombs made to date.