The family of an Arizona congressional staffer who died while camping in Death Valley National Park in California have revealed that his SUV had gotten stranded with two flat tires, and his wife suffered a severe injury to her foot during the ill-fated trip last week. Alexander Lofgren, 32, and Emily Henkel, 27, were found on Friday on a steep ledge near Willow Creek, California, but Lofgren did not survive....