Editors at TMZ.com report the folding knife was found on the site of Simpson's old Los Angeles estate, which was demolished in 1998, and officers from the city's police department are testing the weapon for DNA, fingerprints and other biological evidence. Sources tell the U.S. gossip website the knife was discovered several years ago by a construction worker who handed it to an off-duty police officer.
The now-retired cop allegedly kept the weapon in his home until January (16), when he passed it on to a friend working in the Los Angeles Police Department's (LAPD) Robbery Homicide Division. As O.J. Simpson was found not guilty of Brown Simpson and Goldman's murders, the case is reportedly still officially open, with detectives undertaking a top secret investigation into the crimes. No murder weapon was submitted as evidence by prosecutors in Simpson's 1995 "trial of the century", which is at the centre of hit new TV drama The People Vs. O.J. Simpson.
Under U.S. law Simpson cannot currently be retried for the murders. The Naked Gun star is currently behind bars for unrelated offences including robbery and kidnapping, relating to an incident in Las Vegas in 2007, during which he attempted to recoup memorabilia from his sporting career at gunpoint. Despite his 1995 acquittal on criminal charges, in 1997 a jury in a civil trial in Santa Monica, California found Simpson liable for the wrongful death of Ron and Nicole, and ordered him to pay $33.5 million (£23.7 million) in damages to their families.