New figures show a record number of visitors to London so far this year. 7.9 million flocked to the capital in the first six months of 2013, a 7.7% boost on the same period last year.
The figures from the latest International Passenger Survey also reveal 12 times as many tourists visited London as the next most popular UK city, Edinburgh.
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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