Authorities say several fights broke out near an In-N-Out and a Walmart in Rancho Cucamonga on Friday night, but they have not publicly explained how the confrontations unfolded or what started them. A teenage girl was found unconscious in the restaurant’s restroom. Two girls were arrested on suspicion of assault resulting in serious injuries and booked into juvenile hall.
The Daily Bulletin reported that San Bernardino County sheriff's deputies received multiple calls just before 10 p.m. Friday and went to a shopping center in the 12500 block of Foothill Boulevard. Deputies found the girl inside the In-N-Out restroom with loss of consciousness, facial swelling, and lacerations to one eye and behind an ear, according to the Daily Bulletin.
A family member took the girl to a hospital, the report said. Authorities allege that two girls assaulted her; both were arrested on suspicion of assault resulting in serious injuries and booked into juvenile hall.
Hundreds gathered as deputies responded
San Bernardino County Sheriff's Department spokeswoman Gloria Orejel estimated that several hundred people gathered near the In-N-Out and Walmart. Fontana police and the California Highway Patrol assisted sheriff's deputies, according to the Daily Bulletin's account.
Officers took about an hour to clear the shopping center after arriving. Orejel said weapons were not reported as related to the fight, the report said.
What remains unknown
As of Saturday, the cause of the fight remained under investigation, Orejel said. Authorities had not disclosed what sparked the confrontation or provided a full account of the sequence of events across the shopping center.
Local crowd and juvenile-arrest context
A different crowd-control event in Rancho Cucamonga was a May 29 protest concerning George Floyd at Foothill Boulevard and Day Creek. Fontana Herald News reported that the Sheriff's Department requested help from surrounding cities, including Fontana, to manage the crowd. That protest was distinct from Friday’s reported fight at a shopping center.
For broader context, San Bernardino County juvenile arrests fell 43%, from 5,565 in 2015 to 3,189 in 2024, and 56% of juvenile arrests in 2024 were for misdemeanors, according to San Bernardino County Community Indicators. Those figures cover juvenile arrests overall, not assault-specific arrests, so they do not show an assault trend or characterize the allegations in this case.
The reported fights occurred at or near the In-N-Out in Rancho Cucamonga. The public details so far establish the response, the arrests and the crowd that gathered, but not how the separate confrontations began or led to the girl being found in the restroom.
