murdered. why did he live stream the attack? why did he target his colleagues? the investigation to get answers as we learn the actions of heroic officers who took out the gunman before he took even more lives, plus. the mayor of louisville with an urgent plea to elected leaders in his state. let us the people of louisville make our own choices about h w gun violence in our city. but will anyone in power he d his request and setting the stage for the blockbuster trial. dominion versus fox, a judge s stern warning today as the murdoch network faces a $1.6 billion lawsuit for its many lies to the american people. welcome to the lead. i m jake tapper. we start today with our national lead next hour. we expect louisville officials. to release police body camera video of officers responses to yesterday s mass shooting at a local bank. the city s mayor says the video will be played at a press conference scheduled right now for five p.m. eastern , which we will bring to you live as