John David Trolinger, former information technology director for Kerr County, helped install the area's CodeRED emergency alert system. He shared with Jason Allen what he heard on the emergency radio transmissions as the Guadalupe River was quickly rising.

The death toll from the devastating Texas floods has risen to over 110 people and at least 173 remain missing. Former NOAA Administrator Richard Spinrad joins Ana Cabrera to break down the timeline of the flood alerts and to provide more insight on response.

At least 119 people have been found dead in nearly a week since heavy rainfall overwhelmed the river and flowed through homes and youth camps in the early morning hours of July 4. Ninety-five of those killed were in the hardest-hit county in central Texas, Kerr County, where the toll includes at least three dozen children.

Heavy equipment is tearing through massive debris piles in Kerr County as the search for the missing continues.