Colchester murder: Police seek 'distinctive jacket' man
22 June 2014 Last updated at 16:48 BST
A lake has been drained and searched by police investigating the murder of a Saudi Arabian student in Colchester.
Nahid Almanea, 31, was found with 16 stab wounds on a path near Avon Way on Tuesday. She was on her way to the University of Essex.
Meanwhile, officers are keen to trace a man of tanned appearance wearing a "distinctive jacket", who was seen in the area on the morning of the murder, as Det Ch Insp Steve Worron explained.