Authorities probe how airline employee could steal plane

OLYMPIA, Wash. — Investigators worked to find out how an airline employee stole an empty Horizon Air turboprop plane, took off from Sea-Tac International Airport and crashed into a small island in the Puget Sound after being chased by military jets that were quickly scrambled to intercept the aircraft.The bizarre incident involving a worker authorities said was suicidal points to one of the biggest potential perils for commercial air travel — airline or airport employees causing mayh