Preston Davey was a 'perfectly healthy baby' before being adopted by John McGowan-Fazakerley and Jamie Varley and subjected to a vile campaign of abuse that would end his life

High school teacher Jamie Varley, 37, has been found guilty at Preston Crown Court of the murder of adopted 13-month-old Preston Davey

Jamie Varley, 37, adopted Preston Davey, at nine months old with his partner, John McGowan-Fazakerley, 32

Sarah Davey had some contact with her son and did register his birth