The footage sparked concern over excessive force.
It comes as footage emerged on Saturday of the suspected attack on two men in east London.
No arrests have been made and inquiries are continuing.
Police investigating "deliberate act".
Detectives say it could take a week to identify the clothed bodies.
A 29-year-old man died while a second man remains in hospital.
No arrests have been made.
CCTV footage of a man narrowly avoiding being crushed by bricks falling from a collapsing building has emerged. The pedestrian had a lucky escape as he walked down Stoke Newington High Street, east London, just seconds before the rubble smashed to the pavement.
The teenager was arrested on Friday.
David Martinez was pronounced dead at the scene.