She said: "I'd like to start by saying how truly humbled and overwhelmed we have all been by the outpouring of support and genuine grief that has reached out to touch us this last month. I know Dave would be pretty astounded too.
"He'd be pretty astounded by all this actually. So many people here to celebrate the sheer force for good he was in his too-short life, and to say goodbye to a man who was far too self-effacing to claim the title 'hero'.
"He would never boast or brag about himself, or place himself above others - preferring instead a quiet, self-deprecating humour - but I will proudly claim that title for him, for no man embodied the spirit of a true hero more."