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