police lightsLake Mathews – 50-year-old Agustin Vazquez Calvillo of Perris was fatally shot by an off-duty Orange County Sheriff’s Department deputy on October 10, 2025. 

Incident Details & Response

According to the Riverside County Sheriff’s Office, the incident occurred at around 8:15 p.m near Holy Jim Trail and Main Divide Road by Santiago Peak, where the deputy encountered Calvillo, who appeared to be under the influence and armed. The off-duty deputy identified themselves and issued multiple commands to raise his hands. Calvillo reportedly refused to comply and drew his gun, prompting the deputy to open fire. Calvillo was struck by gunfire and was declared dead at the scene. 

The Riverside County Sheriff’s Force Investigations Detail  and the California Highway Patrol are both investigating the incident.

Legal Standards & Use-of-Force Questions

  • Under California Penal Code § 835a, law enforcement may use deadly force only when reasonably necessary to prevent imminent death or serious bodily injury. Investigators will assess whether the deputy’s response met that standard under the circumstances. 
  • Key questions include: 
    • Was the perceived threat to life or safety reasonable? 
    • Were opportunities for de-escalation available? 
    • Did the deputy’s conduct follow department training and policy? 

Guidance for Families & Rights

If you are connected to this incident or one similar:

  • Request public records: incident reports, body cam footage, internal review documents, and autopsy results. 
  • Preserve independent evidence: photos, video from bystanders, or any relevant communications. 
  • Consult legal counsel experienced in use-of-force and civil rights cases for possible claims under 42 U.S.C. § 1983, or state wrongful death causes of action. 

If you or a loved one has been impacted by police misconduct or an in-custody incident such as this incident with Agustin Vazquez Calvillo, contact The Sehat Law Firm at (949) 825-5200 for a free consultation, or complete the form at the bottom of this page to discuss your case with our legal team.

Legal Disclaimer: This article provides general information only and should not be considered legal or medical advice, nor does it create an attorney-client relationship. Laws vary, and any referenced here may not apply to your situation. This article was created from secondary sources and may not be completely accurate. If you have any concerns, please contact us, and we’ll update or remove the post as needed.