mum of a teenage girl killed by her stepdad knew that her daughter was dead for weeks - but lied to family, friends and police to cover up his sick crimes.
Sarah Walker, 38, covered for vile husband Scott Walker, 51, after she knew he had sexually abused and murdered her daughter Bernadette, 17.
The mum even hacked into Bernadette's social media accounts to send messages to friends and family to make it appear that she was still alive.
The sick couple plotted together to perpetuate their false claim that Bernadette had "run away from home" on July 18 last year, when she was last seen.
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