A man accused of killing a 71-year-old National City woman inside her home in an apparently random attack pleaded not guilty Monday to charges that include murder.

Noel Trevino, 30, is accused in last Wednesday's slaying of Wanda Taylor at her East Division Street home.

Taylor was struck with a rock and stabbed to death, according to prosecutors, who said the victim and defendant were complete strangers to one another.

Deputy District Attorney Bradley Manering said during Trevino's arraignment on Monday afternoon that Trevino went to the home while posing as a salesman — complete with a clipboard and nametag — and spoke briefly with Taylor that morning.

Taylor later left the home, at which point Trevino spent about an hour circling the property and checking the home's doors, Manering

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