Phil Spector's blood was not found on the gun used to kill the actress he is accused of murdering, a court has heard.

Forensic expert Steve Renteria testified only Lana Clarkson's DNA was discovered on the .38-caliber revolver found at her feet at the music producer's Los Angeles mansion on February 3, 2003. A large smear of blood on a staircase banister next to where Clarkson's body was found slumped in a chair also only showed her DNA.

Phil Spector was accused in court of carrying out a sexually motivated murder on Wednesday.

Los Angeles Sheriff's Detective Mark Lillienfeld testified that when he first arrived at the music producer's Los Angeles mansion on February 3, 2003, to investigate Lana Clarkson's death he immediately thought her killing "had sexual overtones to it."

The actress Phil Spector is accused of shooting dead was in fact murdered, a court was told on Tuesday.

Deputy coroner Dr. Louis Pena, who performed the autopsy on Lana Clarkson's body, testified that somebody forced a .38 calibre Colt Cobra revolver into the 40-year-old's mouth at the music producer's Los Angeles mansion on February 3, 2003.

Phil Spector's Brazilian chauffeur wrongly accused the music producer of shooting somebody because he was frightened and his English was poor, a court has been told.

Adriano De Souza previously testified Spector had emerged from his Los Angeles mansion - where actress Lana Clarkson was found dead from a shot to the mouth - clutching a revolver on February 3, 2003, and confessed "I think I killed somebody."

Phil Spector turned "demonic" and tried to rape a female friend at gunpoint, a court has been told.

Dianne Ogden - the second witness called by the prosecution in the music producer's trial for allegedly shooting dead Lana Clarkson at his Los Angeles mansion in 2003 - testified the defendant approached her with a rifle as she tried to leave a party at Spector's other California mansion in Pasadena in 1989.

Phil Spector's lawyers told a court they could scientifically prove the actress he is accused of killing shot herself.

On Thursday, the second day of the music producer's murder trial, the jury heard Lana Clarkson accidentally committed suicide at the defendant's mansion in February 2003 while under the influence of alcohol and painkillers.