The Uvalde school district has suspended its police force following CNN’s report that identified a newly hired school officer as a former state trooper who is under investigation for her response to the Robb Elementary shooting that killed 19 students and two teachers. Brett Cross is the legal guardian of Uziyah Garcia, one of the students who was murdered. He’s been protesting outside the school’s district office demanding justice. He tells Anderson Cooper how it feels to see some people finally being held accountable.

Plus, Ukrainian President Zelensky is warning that Vladimir Putin is preparing Russians for possible use of nuclear weapons a day after President Biden warned that a nuclear attack by Moscow could lead to “armageddon.” Retired Gen. David Petraeus joins AC360 to discuss Biden’s comments.

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