There are three witnesses who provide direct evidence supporting the idea that Park was innocent . The first , a neighbour , claim that they saw Carol at the bottom of her driveway . A second , another neighbour , claim that they saw an unidentified man in a Volkswagen Beetle in the Parks ' drive for twenty minutes . The presence of the unidentified car have never been accounted for . Around 6pm that night , another witness , a woman who knew Carol , saw her at Charnock Richard services . She had mentioned to her husband the fact that Carol had not greeted her , describing her as " snobby " .