A Miami Herald investigation found that one-third of the immigrants being held at “Alligator Alcatraz” have no criminal convictions. Marina Paz prays near the entrance to “Alligator Alcatraz” at the Dade-Collier Training and Transition Airport in Ochopee, Fla., on July 12. He says that the receptionist froze for a moment, before telling him that she didn’t have a number for Alligator Alcatraz. She asked that we use her initial, M. M: (Speaking Spanish). BOTELHO: She kind of froze for a second and said, sir, I don’t have a number for Alligator Alcatraz.