LAS VEGAS -- Prosecutors have filed new charges against a retired California math teacher accused of murdering his wife, whose body has never been found.
John Matthias Watson III, 67, of Ontario, Calif., was accused Monday of using a gun to kidnap, rob and kill Everilda Watson, his wife of 20 years. She disappeared in July during a vacation to Las Vegas.
A Las Vegas justice of the peace appointed a public defender to represent Watson, who could face life in prison if convicted. He was arrested in Ontario in August and extradited to Nevada, where he was being held without bail at the Clark County jail in Las Vegas. He is due again in court on Dec. 27.
Watson, a former teacher at Ontario High School, was previously charged with kidnapping and murdering his wife. Police believe he dismembered and disposed of her body.
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The new charges allege Watson also robbed Everilda Watson of her wedding ring, cell phone and credit cards.
Everilda Watson, 50, was reported missing by her children July 15 after John Watson returned home from a vacation without her.
Officers reported finding Watson with a wig, a bus ticket to El Paso, Texas, several thousand dollars and a fake ID when they arrested him at a Denny's restaurant.
Authorities reported finding blood inside the couple's Jeep Cherokee, and said they have evidence Watson bought an electric saw, bleach, odor absorbent trash bags and other items.