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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Michael Danaher, 50, killed book dealer Adrian Greenwood at his home over a £50,000 first edition copy of Wind In The Willows.
The former Cardiff South and Penarth parliamentary candidate joins Suzanne Evans, Paul Nuttall and Raheem Kassam in the race.
From unnecessary X-rays to misguided blood tests, here is the full list of treatments health experts say will not improve your health.