After a battery of forensic tests, the LAPD confirmed Friday that no connection exists between the knife reportedly found at O.J. Simpson's former home and the grisly 1994 murder case.
Simpson, the former NFL star and actor, was acquitted in the double homicide of his ex-wife Nicole Brown Simpson and Ronald Goldman. The case was the subject of a TV miniseries.
Earlier this year, the LAPD became aware of a knife allegedly recovered at Simpson's former property on Rockingham Avenue in Brentwood, possibly during the 1998 demolition of the site, according to the department.
The knife was submitted to a lab and tested for blood, DNA and hair samples.
The Simpson-Goldman murder is still considered an open case, since no one was ever convicted of the crime.
Over the years, police have examined several knives, but have never found one they could connect to the killings, according to the Associated Press.
Simpson, meanwhile, has steadfastly maintained that he did not kill his wife and her friend.
He is serving a sentence of nine to 33 years in a Nevada prison for a bungled 2007 Las Vegas hotel robbery in which the former football star tried to retrieve sports memorabilia he said had been stolen from him. After the items were seized from memorabilia dealers held at gunpoint, he was convicted of robbery and kidnapping. He is eligible for parole next year, according to the AP.
Investigators previously said it was unlikely this knife was the murder weapon, noting it was too small to inflict the damage the victims suffered.
A lawyer for retired Officer George Maycott has said the construction worker gave his client the knife after meeting him on a film set where the officer was providing security.
Attorney Trent Copeland said his client, who by then had retired, attempted to hand the knife over to the LAPD, but he was told there was no need because Simpson had been acquitted.
This story has been updated.