A former vet has been jailed for 23 years and 10 months after drugging and sexually abusing young boys at summer camps.Jon Ruben, who was labelled by his wife as a "sadistic, monstrous paedophile", used the "cloak of Christianity" to carry out his sex attacks on vulnerable children, Leicester Crown Court heard.

A former vet has been jailed for 23 years and 10 months after drugging and sexually abusing young boys at summer camps.Jon Ruben, who was labelled by his wife as a "sadistic, monstrous paedophile", used the "cloak of Christianity" to carry out his sex attacks on vulnerable children, Leicester Crown Court heard.