SANTA ANA (AP) — A California man has pleaded not guilty to murder in the 1989 stabbing death of a 35-year-old woman in Santa Ana.

The Orange County Register reports 63-year-old Douglas Gutridge will remain behind bars in lieu of $1 million bail after entering his plea on Friday.

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Prosecutors say he killed Carla Salazar inside her apartment in June 1989.

The arrest last month came after a newly created cold case task force took over the investigation in July.

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Senior deputy district attorney Larry Yellin said in December that the motive for the killing is not clear, but investigators believe the pair had a brief, consensual relationship.

Gutridge is scheduled to return to court for a pre-trial hearing in February.

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