LAPD: Tests on knife linked to Simpson estate to take weeks

[...] a law enforcement official with knowledge of the investigation told The Associated Press that detectives doubt the knife is connected to the killings.

Police said a construction worker gave the knife to an officer working as a security guard at a filming location.

Trent Copeland, an attorney who represents the officer, said his client retired in 1998 and that the construction worker gave him the knife in 2002 or 2003, well after a jury found Simpson not guilty of the murders.

In 1997, a civil court jury found him liable for the killings and awarded $33.5 million in damages to the victims' families.

Simpson, who has always maintained his innocence, is now serving a sentence of nine to 33 years in a Nevada prison for a 2007 armed robbery and kidnapping conviction in which he tried to retrieve football memorabilia.