[mrscolumbo]

Well put Jobsfortheboys - I consider the packaging (inner) to hold vital dna as it would have only been handled by Joanna and the culprit - if the culprit swept the apartment clean as to leave no evidence as what had taken place on the evening of the 17th - probably not even the need for wearing marigolds etc to clean up - person must have been mighty relieved that the bins had been emptied on the Tuesday morning especially once the police had made a link with the timeline of the purchase of the pizza and Joanna's murder a couple of days later.