The knife reportedly found at the former home of O.J. Simpson is not connected to the 1994 slayings of his ex-wife Nicole Brown Simpson and Ronald Goldman, Los Angeles police confirmed Friday.

The Los Angeles Police Department performed a variety of forensic tests on the rusty 5-inch fixed blade knife and compared it with the wounds inflicted on the victims before ruling it out as the murder weapon, two sources familiar with the investigation said.

Officials said the knife had been tested for DNA, fingerprints and other forensic evidence. But those tests revealed “no nexus” to the infamous double-homicide case, the police said.

Ms. Simpson and Mr. Goldman were slashed to death on the evening of June 12, 1994, outside her townhouse in the Brentwood neighborhood of Los Angeles. Mr. Simpson, a former star football player in college and in the National Football League, was arrested and charged with murder.

The single-blade, six-inch knife that underwent the recent testing was found many years ago, possibly during the demolition of Mr. Simpson’s house in 1998. But it was turned over to law enforcement officials only recently, the police said.