young couple in california tonight. rachel nguyen and joseph orbeso disappeared friday while hiking in joshua tree national park. authorities are concerned about them trying to survive in triple digit heat. rescuers and volunteers battling hot temperatures and rugged terrain. authorities recovered the vehicle near a park entrance. the health headline about sleep and your weight tonight. a new study finding people who sleep six hours of sleep a night tend to be heavier than those sleeping nine hours. their waist size also more than an inch larger on average. the research also indicates shorter sleep is linked to high blood pressure. wouldn't we all like to get a little more sleep? when we come back tonight, america strong. here comes the bride and talk about wedding crashers. we have never seen this before.