Veterans of the Normandy landings will today be treated to a special lunch on board HMS Belfast.
The event is being staged by Hillingdon Council, with big Lottery Funding, to mark the anniversary of D Day and the Queen's Diamond Jubilee.
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The 52-year-old had previous convictions for violence but was not on the anti-terror watchlist.
In a statement Charlton Athletic said: Keith was a true hero who will be greatly missed by all the Charlton family and everyone at the club.
London and the worlds has united on Twitter in defiance of the West minster attack #prayforlondon #wearenotafraid