Kane Boyce found guilty of murdering his petite girlfriend Facebook . 34-year-old beat her and stamped on her head during row over Paula Newman . He failed to call an ambulance until hours later and she died of her injuries . Court heard he flew into fit of rage when she refused to give him password . Boyce was jailed for life to serve a minimum term of 20 years at Old Bailey .
Kane Boyce found guilty of murdering his petite girlfriend Paula Newman . 34-year-old beat her and stamped on her head during row over Facebook . He failed to call an ambulance until hours later and she died of her injuries . Court heard he flew into fit of rage when she refused to give him password . Boyce was jailed for life to serve a minimum term of 20 years at Old Bailey .