A father who snapped his baby daughter's back in two after causing her months of pain and suffering is facing life in jail after being found guilty of her murder.
Jobless James Howson, 25, twisted the arms and legs of his 16-month-old daughter Amy before breaking her spine over his knee or the back of a chair.
At his trial, Howson tried to blame the tot's death on his partner Tina Hunt, 26, who was pregnant with the couple's second child but the jury at Leeds Crown Court saw through his lies and took just two-and-a-half hours to reach its verdict.
It never emerged in court just why Howson killed Amy - she suffered 40 injuries in all - and it is unclear as to what part Hunt played in the tragedy.
But the jury was told the couple, from Edlington, Doncaster hardly spoke after falling out a few months before the baby's death and Howson apparently did not want another child.
Jurors were told that Tina 'wore the trousers' in the relationship and Howson had little experience in bringing up children.
In the last two months before Amy was found dead at home on December 23 last year, the prosecution claimed Howson punched, slapped and squeezed Amy, causing seven fractures, before breaking her back.
Prosecutor Gary Burrell QC said of the fatal attack: 'He snapped her back in two at waist level as though he held her over his knee or thigh or possibly a chair or sofa back with her back downwards.
'He then used extreme force on her body so as to hyperextend the back and cause a complete break at the level of the first lumbar vertebra. Her back was literally snapped in two.'