In the part of his statement that I quoted the waiter said that Russell returned to the table at 21.45, so Russell would have eaten most of his dinner before Kate give the alert so when he is saying the table was empty that would mean Dianne Webster would have left the table and she stayed there for at least 5 minutes or so I think.
Table witnesses disagree that Russell had ate most of his meal when Kate raised the alarm. Keep trying to make stuff up but I will be here to correct you.
"Russell came back to table and err they’d actually cooked him a fresh steak and he was just starting to tuck into it when err Kate had obviously gone back to check on the children, came running in you know, as far as I can recollect she said you know she’s gone, Gerry, Madeleine’s gone, screaming you know.
They’d cooked another steak for him, it didn’t take very long and he literally I suppose just had about two bites of it when err Kate came running."
http://www.mccannpjfiles.co.uk/PJ/DIANE-WEBSTER-2.htm"I remember just before Kate returned to the table having, having gone to check on, erm, on their kids, because that was pretty much when Russell's steak arrived, I remember that being at that point'."
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'Sorry, his steak arrived when Kate went to go and check or when Kate came back''
Reply
'I remember the steak being here sort of just before Kate came back'.
http://www.mccannpjfiles.co.uk/PJ/FIONA-PAYNE-ROGATORY.htm