Her black leather purse, found near St AndrewSquare bus station in Edinburgh days after she disappeared, contained a note with "Samaritans" scribbled on it and an oral contraceptive leaflet.
Det Con Roderick Scott, 41, described how he and colleagues on "Operation Automate", the search for Samantha, knew she had used a cash machine in nearby St AndrewSquare on 12 June 2008.
Overnight partner James Hildreth was run out by Richard Grant's direct hit at the non-striker's end for 69, and Mckenzie's own innings came to an end when he was caught by Andrew Davies off Croft on the square leg boundary as he looked for a 13th four.