Robbie Hughes, who was left with brain damage after being attacked while on holiday, has gone to Crete for the start of the trial of the six men accused of assaulting him. He is being accompanied by his mother Maggie who spoke to ITV before she left.
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Officers were given the touching letter at Brixton Station while they were on a reassurance patrol after yesterday's attack
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.