Some of their testimony runs counter to previously established facts. ABC also has reporting, no paywall:
https://abcnews.go.com/US/kerr-county-texas-lead-emergency-management-official-asleep/story?id=124237644
"We received no alerts suggesting an extreme weather event was imminent [referring to July 3]. For context, we received hundreds of alerts during the summer. This past July, we had over 80. My first indication that this storm was different came when I woke up to texts and calls from Chief Kidd, Sheriff Leitha and Dalton Rice," Kerr County Judge Rob Kelly testified.
"We now know that by that time, the flooding had already overtaken Camp Mystic, part of the hills in La Junta and several other upriver camps, something I could never have imagined. This extreme weather event was not forecast by the National Weather Service in a timely manner. Based on the volume and tone of the messages, I recognize that something more serious and potentially tragic was unfolding," Kelly continued.
...
Alicia Baker, shaking with emotion and holding back tears, described the horrors of losing her daughter and parents.
Baker told the committee she had spent her summers on the Guadalupe River since 1990, and her parents owned a cabin there for nearly 20 years.
Baker described the harrowing hours of not knowing the fate of her daughter and parents.
"I waited there for over 12 hours for news, and literally no one could tell you anything at all," Baker said. "Literally, no one was in charge."
She added, "We need to do better for the people in this community, for the people that are suffering."