The shop was given listed status because of its historical interest. The Heritage Minister, Ed Vaizey, says it embodies the standard features of the London eel, pie and mash shop, from the gilt lettering on the shop-front to the white-tiled interior with mirrors, seating booths and marble counters.
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A post-mortem report found no traces of drugs or alcohol, and the evidence suggests Simon Brown was not taking photos.
The masked men used an angle grinder to tear through the lock.
Doing as little as possible in the first minute helps people regain control of breathing and increases chances of survival, says the RNLI.