A massive search involving nearly 100 volunteers from both the Contra Costa and Alameda County sheriff's departments has failed to locate the remains of Nina Reiser -- the East Bay mother allegedly killed by her estranged husband.

The weekend search came just days before the trial of Hans Reiser, who has pleaded not guilty to murder charges. Jury selection in the case was scheduled to begin next week.

Contra Costa County sheriff's spokesman Jimmy Lee told the Contra Costa Times that it was a routine search -- one that was not compelled by any new tip or evidence.

"We've done a number of these already,'' he told the paper.

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