Witness videos raise questions about shooting that killed Alex Pretti

Tonight, new videos raising questions of what exactly happened in the leadup to Alex Py's death. The Trump administration now doubling down on defense of the officers involved. Federal officials saying agents acted in self-defense.The Department of Homeland Security posting that Py approached US Border Patrol officers with a 9mm semi-automatic handgun. When he did that, interacting with those agents, when they tried to um get him to disengage, he became aggressive and resisted them throughout that process. ...