The relatives of 19 elderly residents of Orchard View care home on Copthorne, West Sussex, will hear the results of an inquest into their deaths today.
A five-week inquest has scrutinised the levels of care received by the residents before they died.
The care home closed down two years ago, and has since reopened under a new name and management.
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Jonathan Theobald said: "The weather can change quickly and a car can become lethal, I've discovered that the hard way."
Political parties across the country suspended their General Election campaigns following the Manchester Arena terror attack on Monday.