This is the last known photograph of Bob Crow taken before he died of a suspected heart attack on Tuesday aged 52.
The Rail, Maritime and Transport union leader was talking at the Sussex LRC 30th anniversary of the miners strike at Friends meeting house in Brighton.
- Bob Crow in quotes
- Twitter reaction from the Left and Right
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Tributes have poured in for Crow across the political spectrum.
Arch-rival Boris Johnson said: "Whatever our political differences, and there were many, this is tragic news.
"I'm shocked. Bob Crow was a fighter and a man of character.
"Bob fought tirelessly for his beliefs and for his members.
"There can be absolutely no doubt that he played a big part in the success of the Tube, and he shared my goal to make transport in London an even greater success.
"It's a sad day."Suggest a correction