The boy's odyssey was long, but it was nearly over. Determined to flee his new home in Washington state, Semaj Booker, 9, already had stolen a car and sent police on a high-speed chase, boarded a Southwest Airlines flight in Seattle the next day, landed in San Antonio and was heading for the home stretch — a final flight to Dallas, where his old home lay — when local airport officials halted the escapade, police said. Staying at a local children's shelter until authorities decide what to do next, the fourth-grader — charged with two felonies and a misdemeanor —...