PSNI: Londonderry gun attack was "brutal execution"
10 October 2013 Last updated at 17:52 BST
Detective Chief Inspector Ian Harrison said the murder of a man in Londonderry was "a brutal execution of an individual".
Barry McCrory, 35, was shot in the head in a flat at Shipquay Street just before 10:30 BST on Thursday.
Mr McCrory's partner was forced into another room during the gun attack, and has been left "highly traumatised".