Pomona Man Sentenced for 2023 Deadly Shooting
Oscar Gonzalez received 25 years to life in prison following a plea for murder and attempted murder charges.
Updated on Oct. 13, 2026 in Violence

Oscar Gonzalez was sentenced to 25 years to life in prison at the Pomona Superior Court after pleading guilty to first-degree murder, attempted murder, and two counts of assault. The charges stemmed from a 2023 shooting where Gonzalez fired 15 rounds at victims following a property dispute.
Why it matters
This sentencing concludes a lengthy legal process for a violent incident that resulted in one fatality and multiple injuries. The case highlights the severe legal consequences imposed for disputes that escalate into lethal gun violence.
Oscar Gonzalez received a sentence of 25 years to life for murder, with concurrent sentences of 15 years to life for attempted murder and 9 years for each of two assault charges. Additionally, the court ordered him to pay $175,000 in restitution.
The players
Oscar Gonzalez
The defendant who pleaded guilty to murder, attempted murder, and two counts of assault following a shooting incident.
Samuel Villasenor
The victim who died from multiple gunshot wounds during the altercation on Sierra Leone Avenue.
Pasqual Richard Reyes
A survivor who sustained gunshot wounds during the shooting incident involving Gonzalez.
Pomona Superior Court
The judicial venue where the criminal proceedings, plea, and sentencing for the case took place.
The details
Gonzalez confronted his victims at a residence in the 1900 block of Sierra Leone Avenue after they damaged a windshield on his property. During the altercation, he used a semi-automatic firearm to fire 15 shots, killing Samuel Villasenor and wounding Pasqual Richard Reyes.
Timeline
August 26, 2023: Samuel Villasenor was shot and killed.
October 12, 2026: Oscar Gonzalez pleaded guilty and received his sentence.
Legal Context
This sentencing represents the culmination of a violent case that mirrors typical prosecution paths for fatal firearm assaults. It reflects the broader California legal landscape where plea agreements are frequently utilized to resolve complex homicide trials.
The resolution of this case brings closure to the incident that took place in the 1900 block of Sierra Leone Avenue. The court has also issued a stay-away order for the three surviving victims to ensure their ongoing safety.
The takeaway
This case serves as a reminder of the permanent life-altering consequences of escalating neighborhood property disputes into physical violence. Resolving conflicts through mediation or legal channels remains the only safe alternative to prevent lethal outcomes.
Further reading
For additional context on local law enforcement efforts, visit the Violence section.
Source note: This article includes information reported by San Gabriel Valley Tribune.








