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William Manuel Delgado


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A man accused of killing his girlfriend in Lompoc in early 2017 pleaded guilty to second-degree murder and was sentenced Monday to 31 years to life in state prison.

William Manuel Delgado, 43, also admitted to a prior strike conviction and that he personally used a knife during the commission of the crime, according to the Santa Barbara County District Attorney’s Office.

The victim in the case was Raneae Ronquillo, who was Delgado’s live-in girlfriend. Ronquillo was stabbed to death inside the couple’s Lompoc home Jan. 7, 2017, and Delgado was arrested by Lompoc Police officers later that morning.

When officers arrived at the residence, located in the 100 block of South C Street, shortly after 1:20 a.m., they reported finding Ronquillo, facedown, with major injuries to her face. Ronquillo was reportedly not breathing and was pronounced dead at the scene.

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Delgado was previously convicted in 2014 in Riverside County of felony domestic violence involving Ronquillo, according to the Santa Barbara County District Attorney's Office. He served a prison term for that offense.

Delgado also was convicted in 2008 in Riverside County for a felony offense of discharging a firearm with gross negligence.

This report was prepared by Willis Jacobson. He can be reached at