Rachel Nickell Murder Case Reopened After New DNA Evidence Links Suspect to Disturbing Cold Case. London - In a stunning development that has gripped the nation, authorities today announced the reopening of the 1992 murder investigation of 23-year-old Rachel Nickell, following the discovery of previously untested DNA evidence that directly connects a known suspect to the horrific crime on Wimbledon Common. Who: Investigators from the Metropolitan Police's Cold Case Unit, led by Detective Chief Inspector Sarah Reynolds. What: They have released a formal statement confirming that advanced DNA profiling has produced a match to an unidentified male DNA profile linked to the scene, reigniting the hunt for the killer. When: The forensic breakthrough was confirmed on Tuesday, prompting an immediate review of the original case files. Where: The murder occurred on Wimbledon Common in southwest London, and the new evidence was processed at a forensics laboratory in Birmingham. Why: Officials state the match was found during a routine re-examination of evidence as part of an unsolved homicide initiative, upending the previous conviction of Colin Stagg, who was acquitted in 1994. How: The suspect, whose identity is being withheld pending arrest, has been placed under covert surveillance, with a public appeal for information expected within 48 hours.