This is from from The Daily Mail. Last two paragraphs or interesting referring to Michael and Samantha's home.
Superintendent Hatt suggested several people may well turn out to be suspects as the investigation progressed.
If they had a suspect now, he refused to say.
'We have a number of people we are speaking to,' he said.
'All I can say is our avenues are taking us down certain directions and we're following everything.'
Who was home at the time Ms Murphy embarked on her run remains unanswered, but Superintendent Hatt suggested they know the answer and where they went that day.
'There's a lot of movements to and from the house during the day and again we're very, very confident we have tracked all of those movements and we are following up on everything,' he said.