sentences:  Castanheira commandeered their boat and rowed to "Niña" with several armed men, in an attempt to arrest Columbus.Columbus did not allow Castanheira to come aboard, and Castanheira announced that he did not believe or care who Columbus said he was, especially if he was indeed from Spain.After two days, Castanheira released the prisoners, having been unable to get confessions from them, and having been unable to capture his real target, Columbus.