Walker, 51, of Peterborough, was convicted of the murder of 17-year-old Bernadette Walker, who was not his biological daughter, following a trial at Cambridge Crown Court.
Bernadette was last seen alive on July 18 last year and her body has not been found despite police searches.
She claimed that Walker had sexually abused her “over a number of years” prior to going missing. Prosecutors said that Scott Walker killed her to “prevent her pursuing her allegations of sexual abuse any further”.
Walker was also found guilty of two counts of perverting the course of justice.
Bernadette’s mother Sarah Walker, 38, admitted two counts of perverting the course of justice by sending messages from Bernadette’s phone after she was last seen alive and by providing false information to the police relating to her disappearance.
She denies two counts of perverting the course of justice “knowing or believing” Bernadette to be dead and jurors are continuing their deliberations on those two counts after the judge gave them a majority direction.
This means that if 10 or more jurors agree on a verdict, the judge will be content.