Watch Shocking Video, As Dallas Shooter Merciless Kills Cops at Point Blank Range
A person who is believed to be an armed policeman comes up from behind, taking cover behind the first pillar.But the gunman runs around the pillar and shoots the cop.
Bullets are raining down on the area – possibly from other police marksmen.
Terrifying footage shows the gunman taking aim and firing what looks like an automatic rifle from behind a pillar.
The shooter – wearing what looks like a green jacket and light coloured trousers – then moves for the protection of another pillar.