The manager of the hotel, near Bishop's Stortford, where two two guests died after being found in the swimming pool has just issued this statement.
We are devastated by this tragic incident and our thoughts are with the family and friends of those concerned. As soon as the alarm was raised, two of our team dived into the pool and did everything they could to try to save them. We are cooperating fully with the police investigation.
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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