The " lost clues " was in the MailOnline 11th of January 2008,,,which stated that Sheila wasn't dead when police had entered the farmhouse,so she was then put in the recovery position,,hence the blood-flow out of the corners of her mouth.
I'm sorry,,,but the indications must have been there,,even though I wasn't,,,to enable the police to see if they could have saved her life. A dead person,as you know,is completely lifeless,and visibly deceased in many ways.