Peter Maine death: CCTV images released of last sightings
4 September 2013 Last updated at 15:42 BST
CCTV images have been released showing a man stabbed near a running track in Durham 20 minutes before he was found.
Peter Maine, 56, from Wynyard, Stockton-on-Tees, was discovered near the track at Maiden Castle's sports centre at about 08:00 BST on Sunday.
Durham Police said his death was being treated as suspicious but "unexplained" and have started an investigation.
The images, which show Mr Maine jogging through the town centre, are the last confirmed sightings of the solicitor.