Jon Ruben poisoned kids at a Leicestershire summer camp. This is the disturbing story of how he was caughtSome thought kids had just overindulged on sweets. The full story shocked the countryView 4 Images Jon Ruben had admitted to a string of offencesA trusted veterinary surgeon and church volunteer drugged and sexually abused vulnerable children at a charity summer camp in the Leicestershire countryside. View 4 Images The children fell ill while attending a summer camp at Stathern Lodge (Image: Jacob King/PA Wire )The tone was confused, almost apologetic. "If somebody said, 'Does your child fancy a Christian summer camp?'