A teacher who murdered and sexually abused a 13-month-old baby boy he was adopting was given a whole life order in prison today. Jamie Varley, 37, a former head of year, will die in jail for the killing of Preston Davey during sexual abuse in July 2023. His partner, 32-year-old sales manager John McGowan-Fazakerley, who was complicit in Preston's death, was sentenced to 25 years. There was no emotion from either defendant as the sentences were read out at Preston Crown Court.Prosecutors said it was one of the 'most shocking and horrific' cases they have ever dealt with when the pair were convicted by a jury on Monday following an eight-week trial. Preston had been taken from his mother, convicted murderer Sarah Davey, by an emergency care order by Oldham Council and placed into foster care at five days old.He was then adopted by Varley and McGowan-Fazakerley at the age of nine months and subjected to horrific sexual and physical abuse inside their Blackpool home. This morning, Davey sobbed in court as she told her son's adoptive killer fathers, 'I will never forgive you'.She said in a statement her 'world ended' when she found out her son had died, adding that she now lives with the 'unimaginable pain of wondering what he went through'.Passing sentence Mr Justice Mark Turner said Preston had faced 'unremitting abuse' and neglect before being killed by Varley during a sex attack.