A Britten-Norman Trislander, the kind of small aircraft that disappeared off the Dominican Republic Monday with 12 on board. A small Caribbean airplane that vanished into thin air Monday was allegedly stolen by a fired Dominican Navy cadet who may have been trying to carry illegal immigrants to America, the plane’s owner told FOXNews.com. Luis Perez, the Puerto Rico-based owner of the aircraft charter company, said his twin-engine plane was stolen by an unlicensed pilot named Adrian Jimenez. Authorities told him Jimenez was a student of the Dominican Republic Armed Forces and a former Navy cadet. “They took his pilot’s...