Victim suffers a head injury, Atascadero assailant released without bail

A violent altercation at an Arroyo Grande convenience store last month has left a local resident with a severe brain injury and sparked controversy over the San Luis Obispo County justice system. Cherisse Duggan, an Atascadero woman accused of carjacking and severely injuring a man before leading law enforcement on a multi-county chase, was released from custody without bail just days after her arrest.

According to court records detailed by CalCoastNews, the incident unfolded on July 18, 2026, when Daniel Castilleja left his keys in the ignition of his silver Nissan Sentra to step inside the 7-Eleven on Elm Street in Arroyo Grande. Upon exiting the store, Castilleja discovered Duggan in the driver's seat of his vehicle.

When Castilleja attempted to pull Duggan from the car and shut off the engine, a struggle ensued. Duggan allegedly fought back, hit the gas pedal, and sped away, causing Castilleja to fall from the moving vehicle. A bystander attempted to block the stolen Nissan to stop the fleeing suspect, but Duggan swerved and continued her escape northbound.

A High-Speed Chase and Hospital Transfer

Emergency responders transported Castilleja to Arroyo Grande Community Hospital. Medical staff quickly discovered he was suffering from a brain bleed, a life-threatening injury that necessitated a transfer to a specialized trauma center for further treatment. Meanwhile, investigators utilized tracking technology to follow the stolen vehicle as it traveled up Highway 101.

The pursuit ended hours later in Salinas. California Highway Patrol officers successfully stopped the vehicle, but Duggan reportedly refused to exit the car. Law enforcement deployed a K-9 unit, and a police dog jumped into the stolen vehicle. While the K-9 was biting her arm, officers successfully subdued and arrested Duggan.

Arroyo Grande police booked Duggan on several severe felony charges, including carjacking, assault with a deadly weapon, vehicle theft, and leaving the scene of an accident.

Questions Surrounding Zero-Bail Release

The details of Duggan's criminal history and subsequent release have drawn significant public scrutiny. Records indicate that Duggan was already involved in the legal system. On June 28, 2025, she was arrested for driving without a license and evading arrest. Instead of facing a standard court trial for those charges, a judge previously granted Duggan misdemeanor diversion—a program designed to dismiss all charges if the defendant refrains from illegal activity for one year.

The alleged July 18 carjacking clearly violated the terms of that diversion program. Recognizing the severity of the new charges and her history, San Luis Obispo County prosecutors asked the court to set Duggan's bail at $500,000. SLO County Superior Court Judge Crystal Seiler initially approved the prosecutors' request for the higher bail amount.

However, on July 21, just days after the arrest, Judge Seiler agreed to release Duggan from custody without posting any bond. The court placed Duggan on a post-arraignment monitoring program. As conditions of her zero-bail release, Duggan simply agreed to abstain from alcohol and drugs, refrain from driving, and not possess any firearms. Prosecutors formally noted their objection to the judge's decision to release the suspect.

What Comes Next for SLO County Residents

The case highlights ongoing debates across California and the Central Coast regarding pretrial detention, bail reform, and judicial discretion. For San Luis Obispo County residents, the release of a suspect accused of a violent, random act of carjacking has understandably shaken community members. 7-Eleven patrons and everyday shoppers throughout Arroyo Grande and surrounding SLO County cities are left grappling with the brazen nature of the daytime crime.

Duggan is scheduled to be arraigned on July 28 on the charges related to the July 18 carjacking, as well as for violating her prior misdemeanor diversion requirements. As the case moves forward, it will likely remain a focal point for local residents concerned about public safety, repeat offenders, and how the local judicial system balances the rights of the accused with the safety of the community.