Medical experts and friends of Luke Walker, who is accused of killing his girlfriend in Crete three years ago, are due to give evidence in his trial today.
Mr Walker from Brierley Hill, near Dudley, denies murdering Chelsea Hyndman in 2010.
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The teenager was last seen on 14 June near to a canal.
Two men were injured following the alleged incident.
Drier conditions to follow and some late sunshine this afternoon.