All three said they saw him at Royal Exchange Buildings, a pedestrian area 200ft from where he eventually fell. They variously described seeing him being pushed and thrown to the floor by an officer, struck with a police baton and hitting his head against the pavement.
The witnesses - Anna Branthwaite, 36, a freelance photographer from south London, Kezia Rolfe, 27, a researcher from Stoke Newington, north London, and Amiri Howe, 24, an actor from west London - all said the incident took place moments after violent clashes between police and protesters.