Lester Holt joins to discuss his all-new Dateline report about last year’s deadly flood at Camp Mystic that claimed the lives of 25 campers and 2 counselors. Also, from sunburns to heat rashes, what you need to know about keeping your skin healthy this summer. Plus, Shop TODAY Executive Editor Adrianna Brach shares the best deals of the year on the last day of Amazon’s Prime Day. And, singer Melanie Martinez stops by to discuss her latest album “Hades”.