New footage of the man who died at the G20 protests shows a police officer lunging at him and leaving him on the ground for bystanders to help.
Ian Tomlinson, 47, died last Wednesday after encountering riot police near the Bank of England as he returned home from his work as a newsagent.
The footage, released yesterday by The Guardian, reveals a docile-looking Mr Tomlinson walking with his back to police officers at about 7.20pm.
One Metropolitan Police officer appears to lunge at him with a baton from behind and he falls to the ground. A bystander had to help him to his feet.
Mr Tomlinson is understood to have then walked on to Cornhill where he collapsed. A New York fund manager visiting London shot the footage.
The Independent Police Complaints Commission is investigating the death.