Penelope Schofield, the West Sussex coroner, said there was "institutionalised abuse" at Orchid View care home in Copthorne.
She said those involved in the neglect of pensioners at the now defunct home should be "ashamed" as it was announced a serious case review has been set up.
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82-year-old Clayton Barnes arrived in the UK in 1959 as part of the Windrush generation, and worked and paid taxes for 51 years.
The American actor, best known for his portrayal of the character Mini-me in Austin Powers, has died at the age of 49.
A humid night for some with thundery downpours in places.