Panic as Trump gunman opened fire: ‘He’s got a gun…he’s on top of the roof!’

Dramatic video captured the chaos as rally-goers spotted the gunman on a roof, moments before he opened fire at former President Donald Trump. ‘He’s got a gun!” one person is heard yelling, as another cries out “He’s on top of the roof!’ The gunman, who was then killed by Secret Service snipers, is believed to...