The family of Joseph Naugle, the 23-year-old restaurant worker accused of stabbing five of his co-workers inside a Thunder Valley Casino kitchen, has expressed sorrow for the victims and said he has struggled for years with severe physical and mental health problems. The attack unfolded inside the Dos Coyotes Border Cafe at the casino in Lincoln, California, on August 19, 2026, leaving five employees wounded — none of them critically, according to the Placer County Sheriff’s Office.
In a statement provided on Sunday to KCRA 3, the family extended its sympathies to the Thunder Valley employees and their loved ones and said it was praying continuously for their recovery and peace of mind.
“While we cannot speak on the details of the active legal case, we hope there will be an understanding of the complex medical realities involved,” the family said.
No motive has been made public. Officials said no further information about what preceded the attack was available right away, and the sheriff’s office said its investigation is continuing.
Violence in the Restaurant Kitchen
The stabbing was reported about 7 p.m., the sheriff’s office said, announcing the incident in an Instagram post. All five victims were stabbed in the kitchen area of the restaurant, a Thunder Valley Casino spokesperson said, and everyone caught up in the violence worked there. No casino guests were involved.
One of the wounded was driven to an area hospital, where the injuries were not considered life-threatening. The other four were treated where they were found, by Thunder Valley emergency personnel and Cal Fire crews, and their injuries were not life-threatening either. Photographs shared with KCRA 3 showed workers being tended to by paramedics on the casino floor, and the station’s LiveCopter 3 captured aerial footage of the investigation.
The scene, by then, was already contained. Deputies who responded to the casino took a suspect into custody within minutes of arriving, the sheriff’s office said. A KCRA 3 news crew and a CBS News Sacramento camera each recorded the same striking image: a man still wearing a kitchen apron, hands cuffed, being guided into the back of a patrol vehicle.
All Involved Worked at Dos Coyotes
The sheriff’s office identified the man as Naugle and said it appeared he knew every one of the people who were stabbed. On Thursday, the agency confirmed what the casino had already indicated: Naugle and all five victims were Dos Coyotes employees.
Officials said no other suspects were being sought and that neither the public nor anyone inside the casino faced an active threat. Thunder Valley was not evacuated. The restaurant shut its doors, while the rest of the property kept running for the evening — a decision that underscored how narrowly the violence was confined to a single back-of-house workspace on an ordinary Wednesday.
Thunder Valley Casino, in Placer County northeast of Sacramento, draws crowds nightly to its gaming floor and restaurants. Dos Coyotes Border Cafe operates as one of the casino’s dining options.
Attempted Murder Charges and Court Dates
Naugle was booked into the Placer County Jail on attempted murder charges, and the sheriff’s office said it expects more charges to follow in connection with the attack.
He made his first court appearance on Friday, when he was arraigned on the attempted murder charges and the court appointed a public defender to represent him, prosecutors said. Naugle is ineligible for bail. According to the Placer County District Attorney’s Office, a criminal protective order was filed against him on behalf of each of the five people who were stabbed — five orders in all.
Naugle has pleaded not guilty. As of August 21, his next court appearance was set for Wednesday; no account of that hearing appeared in the available reporting.
What remains unanswered is the question that has hung over the case since the first patrol cars pulled up to the casino: why. Neither the sheriff’s office nor prosecutors have offered an explanation for the attack, and the family’s statement, while pointing to Naugle’s medical history, stopped short of addressing the allegations directly.
For the five workers who were wounded, the outcome was, by the narrowest of measures, better than it might have been. All five survived. Four were patched up on site, and none faced life-threatening injuries — an ending that owed something to the speed of the response by casino medics, Cal Fire and the deputies who reached the kitchen within minutes.