It is not the first time the murder of Debbie Linsley has been re-investigated. In 2002 police thought that they had made a similar breakthrough, giving them the ability to complete a map of the killer's DNA , left behind at the scene.
Here is a news report from 13 September 2002.
More top news
Builders working on a residential and hotel scheme in Stratford City rescued a duckling after it was separated from the rest of its family.
British astronaut Tim Peake takes part in a test to see how a Mars rover handles when it's controlled from further away.
Jack Susianta, a 17-year-old student, died on July 29 2015 after jumping into the River Lee in east London.