Mr. Parineh, 64 at the time of his arrest in June 2010, pleaded not guilty in August 2010 to accusations of premeditated murder for financial gain in the shooting death of his wife, Parima Parineh, who was 56.
Mr. Parineh has been in custody in the county jail on a no-bail status since his arrest, according to the San Mateo County District Attorney's Office.
Deputies from the Sheriff's Office found Ms. Parineh dead of multiple gunshot wounds on April 13, 2010, in the bedroom of the couple's home.
Medics found Ms. Parineh dead in the couple's bedroom with no signs in the house of forced entry. Mr. Parineh allegedly told authorities that his wife had shot herself, but after an autopsy, investigators dismissed the suicide allegation and determined that Ms. Parineh had been murdered.
Despite evidence of multiple gunshots, the defense has been showing indications of a suicide defense, District Attorney Steve Wagstaffe told the Almanac.
If convicted, Mr. Parineh could be sentenced to death or to life in prison without the possibility of parole, prosecutors said.