The Guardian obtained this footage of Ian Tomlinson at a G20 protest in London shortly before he died. It shows Tomlinson, who was not part of the demonstration, being struck from behind and pushed to the ground by baton-wielding policeRead the full story of Ian Tomlinson's death at the G20 protests . The Guardian's Ian Tomlinson video is also on YouTube if you wish to embed it on your website or blogUpdate: Watch new ITN/C4 News footage giving a fresh angle on the attack