Tustin Shooting: Latest Updates on Fatal Police-Involved Shooting, Previous Deadly Gun Violence, Investigations and What We Know

TUSTIN, CALIFORNIA — Tustin, in Orange County, California, has been the scene of several serious shooting incidents in 2026, including a fatal officer-involved shooting and a separate deadly shooting that claimed the life of a 42-year-old woman.

One of the most significant recent incidents occurred on August 24, 2026, when Tustin police officers fatally shot an armed man during a response to a reported domestic incident at an apartment on Walnut Avenue. Officers said the man advanced toward them while holding a knife after they discovered an unresponsive woman inside the residence.

The incidents have drawn attention to public safety, police response procedures and ongoing criminal investigations in the Tustin community.

As of November 11, 2026, the available reporting reviewed for this article does not establish that a new shooting occurred in Tustin today. The following report separates the documented incidents to avoid confusing separate investigations.

Latest Tustin Shooting: What Happened on August 24?

According to police reports, officers responded shortly after 2:30 p.m. on August 24 to an apartment in the 1400 block of Walnut Avenue.

The initial call involved a domestic incident that was subsequently upgraded to a possible homicide investigation.

When officers arrived, they encountered a man inside the residence and discovered an unresponsive woman lying on the floor.

Police said the man advanced toward officers while holding a knife. Officers subsequently opened fire, striking the man.

Despite life-saving medical efforts, the man died from his injuries at the scene.

The woman was also found deceased. Police indicated that she may have been dead for some time before officers arrived.

Authorities did not immediately disclose the identities of the two individuals or establish their relationship publicly.

The incident prompted an investigation by the Orange County District Attorney’s Office, which reviews officer-involved shootings.

Separate Fatal Tustin Shooting: May 2026

Another major shooting investigation took place in Tustin on May 14, 2026, when a 42-year-old woman was fatally shot near the intersection of 17th Street and Yorba Street.

Police responded shortly after 6 p.m. following reports of gunfire.

Officers discovered the woman unresponsive near a white SUV. She was pronounced dead at the scene.

Witnesses reportedly described seeing a man dressed in black leave the area in an older, dark-colored sedan.

The victim was subsequently identified as Sandra Fernandez Rodriguez, 42, of Anaheim.

Suspect Arrested in Fatal Shooting

The investigation led police to identify Juan Marquez, 47, of Hawthorne, as the suspect.

According to investigators, Marquez allegedly waited near the victim’s workplace before shooting her. Police said he subsequently fled to Mexico.

He was detained by U.S. Customs and Border Protection when he returned to the United States through a border checkpoint on May 16.

He was later booked into Orange County Jail and charged with murder.

The May shooting is a separate criminal investigation from the August officer-involved shooting on Walnut Avenue.

Police Investigation and Official Response

The Tustin Police Department has handled multiple investigations involving deadly violence in the city.

In the August incident, the Orange County District Attorney’s Office became involved to independently investigate the circumstances surrounding the fatal police shooting.

Such investigations generally examine:

• The circumstances leading to the police response.

• Whether officers faced an immediate threat.

• Evidence collected at the scene.

• Witness statements and available surveillance footage.

• The actions taken by officers before and after the shooting.

The investigation is important in establishing the full circumstances surrounding the incident.

Is There an Ongoing Threat to the Public in Tustin?

For the May 2026 fatal shooting, Tustin police previously described the incident as isolated and said they did not believe there was a threat to the general public.

The August incident involved an armed individual inside a residence during a police response.

Residents should rely on official Tustin Police Department announcements for any new safety instructions, road restrictions or emergency alerts.

There is no verified information in the sources reviewed establishing a continuing public threat connected to either incident.

Community Impact and Public Safety

Fatal shootings can have a significant impact on residents, families and surrounding neighborhoods.

The incidents in Tustin have raised concerns about domestic violence, firearm-related crime and the safety of people living and working in the community.

Residents who witness suspicious activity or have information about a criminal investigation should contact local law enforcement.

Anyone facing immediate danger should call 911.

What We Know About the Tustin Shooting

• Location: Tustin, Orange County, California.

• Latest major police-involved incident: August 24, 2026.

• August incident location: 1400 block of Walnut Avenue.

• August incident: Officers fatally shot an armed man who police said advanced toward them with a knife.

• Additional victim: An unresponsive woman was found deceased inside the residence.

• Separate May incident: A 42-year-old woman, Sandra Fernandez Rodriguez, was fatally shot near 17th Street and Yorba Street.

• May suspect: Juan Marquez was arrested and charged with murder.

• Investigating authorities: Tustin Police Department and Orange County District Attorney’s Office, depending on the incident.

• November 11 update: No newly confirmed shooting today was established by the available reporting reviewed.

Frequently Asked Questions (FAQs)

1. Was there a shooting in Tustin, California?

Yes. Tustin experienced multiple serious shooting incidents in 2026, including a fatal police-involved shooting on August 24 and a separate fatal shooting in May.

2. Where did the August Tustin shooting happen?

The August 24 incident occurred at a residence in the 1400 block of Walnut Avenue in Tustin.

3. Did anyone die in the Tustin police shooting?

Yes. Police said the armed man died after officers opened fire. A woman was also found deceased inside the residence.

4. Was the Tustin shooting connected to a domestic incident?

Police initially responded to a domestic incident that was subsequently upgraded to a possible homicide investigation.

5. Was anyone arrested in the May Tustin shooting?

Yes. Juan Marquez, 47, was arrested after investigators identified him as the suspect in the fatal shooting of Sandra Fernandez Rodriguez.

6. Is there an active shooter in Tustin today?

The available reports reviewed do not confirm an active-shooter situation in Tustin on November 11, 2026. Readers should check official police announcements for breaking developments.

7. Who is investigating the August Tustin police shooting?

The Orange County District Attorney’s Office is conducting an independent investigation into the officer-involved shooting.

Latest Tustin Shooting Updates

The Tustin shooting investigations involve separate incidents with different circumstances and individuals. The August police-involved shooting remains particularly significant because of the fatal encounter between officers and an armed man inside a residence.

Meanwhile, the May shooting resulted in an arrest and murder charges against a suspect.

Further developments, including official investigative findings, court proceedings and additional police statements, may provide more information about these cases.

Story status: Developing background report. No new November 11 shooting has been independently confirmed in the sources reviewed. Details should be updated when authorities release additional verified information.