Bystanders captured on video the moments leading up to when federal agents fatally shot Minneapolis resident Alex Pretti on Jan. 24 and the immediate aftermath. The videos show several agents wrestling with Pretti on the ground moments before the shooting. In a statement, the Department of Homeland Security said Pretti approached U.S. Border Patrol officers with a 9 mm semi-automatic handgun and violently resisted as officers attempted to disarm him.