On the same day a young Uvalde victim recounted the horrible massacre at her elementary school before a House committee, the Justice Department outlined an inquiry into the delayed police response to the shooting. Attorney General Merrick Garland said a team, led by a contingent of outside law enforcement experts, would seek information from all responding police agencies, witnesses and family members. "We have been promised, assured and welcomed by every level of law enforcement," Garland said. The attorney general said the inquiry would be "comprehensive, transparent and independent." The federal action was requested by Uvalde Mayor Don McLaughlin, as questions about law enforcement's actions have shrouded the deadly attack. Last month, state police officials outlined a damning account of law enforcement inaction in which authorities waited more than an hour before storming adjoining classrooms at Robb Elementary School to take out the 18-year-old gunman, even as children made repeated 911 calls pleading for help.