A Windsor man was sentenced today in Sonoma County Superior Court to 40 years to life in prison for cutting his mother’s throat with a razor last October. Socorro Sierra, 29, was convicted in May after a weeklong trial of assault with a deadly weapon and false imprisonment, Sonoma County District Attorney Jill Ravitch said. The jury also found Sierra personally inflicted great bodily injury on his mother during the assault, Ravitch said. Judge Arthur Wick found Sierra had been two previous strike convictions and two prison terms. Wick sentenced Sierra to 15 years and a consecutive 25-years-to-life term under the three strikes law, Ravitch said.
Sierra and his father took the victim to the hospital on Oct. 15, Ravitch said. Sierra’s mother said she suffered a laceration to the left side of her neck when she fell, but later admitted her son assaulted her with a razor blade, Ravitch said. An investigation determined Sierra and his mother were arguing about car keys that were taken from Sierra because he lost his job, Ravitch said. As Sierra’s mother’s left for work, Sierra stepped in front of her and lunged at her with a razor blade, Ravitch said. The wound required seven stitches.
Ravitch said the judge called the assault “unthinkable” and the lengthy sentence was required to protect society.Sierra’s two previous strike convictions include a 2000 assault with a deadly weapon committed in association with a criminal street gang in Sonoma County, and a 2001 first-degree burglary conviction in Marin County, Ravitch said. The 25-years-to-life term includes the possibility of parole, Ravitch said.
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