Many are still missing in Kerr County, Texas after flash flooding killed at least 70 people. Residents are bracing for more bad weather as more rain is predicted for today. Christian Brown, who was in a cabin with his family as the flash flood hit, shares the terrifying story of how he and his family survived and escaped to safety. For more context and news coverage of the most important stories of our day click here: https://www.msnbc.com/ » Subscribe to MSNBC: https://www.youtube.com/msnbc »