'MOST DISTURBING' CRIME SCENE.
Hosted by former deputy chief constable John Stalker, the programme showed the scene of the crime for the first time, including cups of tea that were left untouched as the victims were taken into a bedroom.
Viewers also saw fumigated walls and a section of blood-stained carpet from the floor.
"It's one of the most disturbing crimes scenes I have ever visited. The victims watched each other die," Mr Stalker said.
Det Supt Paul Gough, who led the investigation at the time, also showed two key pieces of evidence - an acrylic red scarf and a piece of black tape - that was used to tie up the victims and he hoped would help shed light onto the killer.
Sadly, it did not provide the breakthrough police needed.
TV profile: Det Supt Paul Gough and John Stalker with some evidence.