The National Park Service has launched a search with help from the state’s Department of Emergency Services. The operation is focusing on the southern portion of the park where her car was found, authorities said. #NEW update from @ShenandoahNPS: Julia Devlin is still missing. Her car was found wrecked off of Skyline Drive on Saturday. They have wrapped up their search on the ground in spaces of the highest probability and have been investigating behind the scenes as well- so far no clues. pic.twitter.com/6sLMwbeWHa Foul play? ‘Shenandoah National Park officials urge the public to avoi...