Authorities probe how airline employee could steal plane from Sea-Tac airport
By RACHEL LA CORTE and KEITH RIDLER OLYMPIA, Wash. — Investigators are piecing together how an airline ground agent working his regular shift stole an empty Horizon Air turboprop plane, took off from Sea-Tac International Airport and fatally crashed into a small island in the Puget Sound after being chased by military jets that were…