-The Los Angeles Police Department is conducting tests on a knife purportedly found at O.J. Simpson's old property after they recovered it from a retired LAPD officer within the past month.

But a law enforcement official briefed on the investigation says the preliminary assessment is that it is not the murder weapon. The real weapon, the official said, would likely be larger and possibly "exotic."

"The story, as it's told to us by the [retired officer] that we received it from," Capt. Andrew Neiman of the LAPD said at a news conference today, was that the officer "was working in the area of the Rockingham estate and he claimed that an individual," who said he was a construction worker, gave him that knife, Neiman said.

The officer, identified by his lawyer as George Maycott, retired in 1998 and was working security on a movie set about five years later when he was approached by a construction worker down the street from Simpson's demolished estate, the attorney, Trent Copeland, said.

The worker handed him a dirty and muddy knife, with no evidence of blood and Maycott immediately called the West Office of the LAPD, Copeland said. According to the lawyer, Maycott was put on hold and was later told that the Simpson case was over.

Maycott then took the knife -- a 5-inch buck knife with a brown handle -- home and put it in his toolbox, where it sat for about 15 years...

http://abcnews.go.com/US/knife-found...ry?id=37397516