The cyclist is described as black, wearing a long dark coat and riding a mountain bike.
The victim was repeatedly punched by this man in a completely unprovoked attack and some of the injuries will never heal.
This case remains a priority and I am asking for the publics help in catching this very dangerous and callous man.
More top news
Tree surgeon Ben Atkinson could be seen balancing on beams half way up the tower.
The flag was seen flying from the scaffolding around Big Ben.
Campaigners calling for a second referendum on Brexit are set to march through central London at midday.