LAS VEGAS — The roughly 1,500-foot elevation gain up to the summit of Angels Landing is enough to frighten even the most experienced hikers. It’s a long fall to the bottom. Twenty years ago, New York-New York casino cocktail waitress Bernadette Vander Meer, 28, made it all the way to the highest peak with her husband before, according to him, she fell to her death. At the time, David Vander ...