 After that, Charles supervised McMahon's activities as a Gambino associate.In 2009, McMahon became a government witness and testified against Charles.Law enforcement believes that Carneglia either directly or indirectly participated in the murders of Bonanno crime family capos Philip Giaccone, Dominick Trinchera and Alphonse Indelicato; Gambino boss Paul Castellano and underboss Thomas Bilotti; and Gotti neighbor John Favara.