Riverside Woman to Face Sentencing for 2021 Murder
Wynette Clara Nunez will be sentenced this Friday for the second-degree murder of 27-year-old Mauro Villasenor.
Updated on Oct. 22, 2026 in Criminal Justice
On October 23, 2026, Judge Charles Koosed is set to sentence 43-year-old Wynette Clara Nunez for the 2021 stabbing death of her partner. A Riverside jury previously convicted Nunez of second-degree murder in connection with the fatal attack.
Why it matters
The conviction stems from a domestic dispute involving infidelity that turned lethal when the defendant used a knife against the victim. Nunez remains in custody at the Smith Correctional Facility ahead of the final sentencing proceedings.
A Riverside jury convicted Nunez of second-degree murder, including a sentence enhancement for the use of a knife. The defendant is currently held without bail while awaiting her final sentencing of 16 years to life.
The players
Wynette Clara Nunez
The 43-year-old defendant was convicted of second-degree murder after stabbing her partner.
Mauro Villasenor
The 27-year-old victim was killed in a domestic stabbing incident involving his partner.
Charles Koosed
The judge presiding over the sentencing hearing at the Riverside Hall of Justice.
The details
Nunez stabbed the victim in the collar bone, forearm, and above the eyebrow after retrieving multiple knives from the kitchen. The couple had lived together for nine months in their San Jacinto home before the fatal incident occurred on July 4, 2021.
Timeline
July 4, 2021: Nunez stabbed Mauro Villasenor.
August 2026: Riverside jury convicted Nunez of second-degree murder.
October 23, 2026: Scheduled sentencing hearing.
Legal Context
The court's upcoming sentencing follows the mandatory minimums and judicial discretion set by California's second-degree murder sentencing guidelines. Such cases underscore the state's legal approach to domestic violence resulting in felony convictions.
The conclusion of this trial brings a sense of finality to a case originating in the San Jacinto area. Local residents may see continued interest in courtroom procedures at the Riverside Hall of Justice during this final sentencing phase.
The takeaway
Domestic conflicts involving infidelity often carry severe legal consequences when they escalate into physical violence. Individuals facing such extreme interpersonal crises are encouraged to seek professional mediation or intervention services before situations turn fatal.
What happens next
Judge Charles Koosed will preside over the sentencing hearing at the Riverside Hall of Justice on October 23, 2026.
Further reading
Learn more about local court proceedings on the Criminal Justice page.
Source note: This article includes information reported by My News LA.
