Peter Sutcliffe asked Marilyn if she was 'doing business'. After agreeing a price Sutcliffe suggested a location on Scott Hall Street, some one and a half miles away.

As Marilyn got out of the car to get into the back seat she was attacked from behind with a blow to the head. Further blows rendered Marilyn unconscious.

Sutcliffe was alarmed as a dog barked nearby. He got into his Ford Corsair and sped away. In his desire to leave the scene so quickly he left tyre tracks behind. These tracks were later matched to tyre marks at Irene Richardson's murder.