CIA covert operations and intelligence gathering station JM/WAVE in Miami was established as the operations center for Task Force W, the CIA's unit dedicated to Operation Mongoose.[1]/[2] Agency activities were also based at the Caribbean Admission Center at Opa-Locka, Florida,[42] and even at one point enlisted the aid of the Mafia (who were eager to regain their Cuban casino operations) to plot an assassination attempt against Castro; William Harvey was one of the CIA case officers who directly dealt with mafioso John Roselli.[43] The mafioso John Roselli was introduced to the CIA by former FBI Agent Robert Mahue. Mahue had known Roselli since the 1950s and was aware of his connection to the gambling syndicate. Under the alias "John Rawlson," Roselli was tasked with recruiting Cubans from Florida to help in the assassination of Castro.[44]