A callous mother and stepfather who battered to death a four-year-old boy after subjecting him to six months of systematic starvation and “incomprehensible” cruelty have been found guilty of murder.

A callous mother and stepfather who battered to death a four-year-old boy after subjecting him to six months of systematic starvation and “incomprehensible” cruelty have been found guilty of murder in the UK.