DETECTIVES investigating the murder of Sara Cameron spoke last night of their continued dedication and commitment to finding her killer - two years after her death.

Detective Superintendent Steve Bolam, who heads the investigation, outlined three key areas where inquiries continued to be focused.

The first was Shiremoor Metro station, where Sara arrived on a train from Newcastle shortly after midnight, on April 21, 2000, intending to walk to her North Tyneside home at Earsdon.

Police are also trying to piece together events at a field adjacent to the A186 Earsdon road, where Sara's body was found on Good Friday, April 21, and the Den, Wellfield, a wooded area where some of Sara's clothes and belongings were found.

Det Supt Bolam said: "A man was seen running behind Sara as she made her way home from the station.

"He has not come forward, despite extensive appeals from the early days of this inquiry, and it is absolutely vital that we trace him.

"We still haven't been able to trace everyone who was in the area around Shiremoor Metro station that night, or everyone on that last metro.

"We've traced 64 passengers so far, but there were another 25 men and women who were also on that train, and we still want them to come forward."

He said police also needed to trace two men who were at Longbenton Metro station on the Thursday night.

One was seen crossing the tracks before Sara's train arrived, then they both got on the train and may have sat in the same carriage.

Since the investigation started, thousands of people in the Earsdon, Shiremoor and Wellfield areas have been seen by police officers.

Extensive DNA screening started after a DNA profile of a man was obtained from the scene of Sara's murder.

So far, 4,489 samples have been taken and 4,081 people eliminated.