Reynolds, who lived out his last years in Croydon, south London, had been in poor health in the last few months.
His son Nick Reynolds confirmed that he passed away in his sleep.
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Highs on Thursday of 18C.
Barnet Council ran the school, which was an institution for young people with learning difficulties.
Bowers pleaded not guilty of assaulting his ex-fiancee Sophia Cahill in Croydon in January.