The above information is from Wikipedia. I wanted to add this case as it has recently been the subject of an hour documentary in the Donal MacIntyre Unsolved series. The aspect of the case which most staggers me is the time of day and place of the murder. This was a busy area and a busy time, surely this was not a plan? The Unsub must have been covered with blood after the attack, add to this that Penny supposedly tried to solicit help by turning on her hazard lights, windscreen wipers and driving very slowly and it seems hard to understand how more eyewitnesses were not tracked down. The documentary made much of the fact she had withdrawn £8, 500 in cash a few days earlier and was carrying that amount with her when she was attacked. The money has never been found and the husband had no idea what it was for, the withdrawal was not covered up by Penny as it was taken from the couples joint account. The investigation spent a great deal of time focused on the husband but he had an alibi and the police could not find a motive for him. Although it was not said in the documentary the whiteboard in the background noted that police had a partial palm print from the car that they believe to be from the suspect. I feel very much for the daughter robbed so violently of her mother when she was a young girl. So I throw it open in the hope that some sharp minds from here might have some ideas.