They admitted the two other murders 20 years later .
After being turned in by Hindley 's brother - in - law David Smith , Brady was found guilty of three murders and Hindley of two at their trial in May 1966 , for which they received life sentences .
murders admitted the two other murders 20 years later .
After being turned in by Hindley 's brother - in - law David Smith , Brady was found guilty of three murders and Hindley of two at their trial in May 1966 , for which they received life sentences .