Rally attendees spot gunman minutes before Donald Trump shot – video

Attendees at a Donald Trump campaign rally shouted to alert police officers when they spotted a man with a gun on top of a roof at the Pennsylvania venue.

Twenty-year-old Thomas Matthew Crooks was able to fire at least one shot at Donald Trump, injuring his right ear, before a sniper positioned on a roof near the former president killed the gunman.

FBI officials said on Sunday they were assessing the shooting of Donald Trump on Saturday as a possible domestic terrorism attack and assassination attempt