Trainer’s Phone Reveals Sickening Footage

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A 16-year-old student told San Jose police her school’s athletic trainer sexually battered her during a treatment session and filmed it on his phone.

Quick Take

San Jose police arrested Kelvin Chiu, 31, a day after a student reported he assaulted and recorded her during a sports injury treatment.
Chiu worked as an athletic trainer at Archbishop Mitty High School, a private Catholic school in San Jose.
Detectives say a phone search turned up child sexual abuse material, adding charges beyond sexual battery.
Police believe there may be additional victims and are asking the public for information.

What The Student Reported And How Fast Police Moved

Officers responding around 7:30 p.m. on October 8, 2026, spoke with a 16-year-old student at Archbishop Mitty High School. She told them the school’s athletic trainer sexually battered her while treating a sports injury and recorded the incident on his phone. Police did not sit on that report. Within a day, detectives had identified a suspect, secured search warrants, and made an arrest.

That speed matters. It shows investigators treated the student’s account as credible enough to act on immediately, not as a vague complaint requiring weeks of review. Detectives obtained warrants covering Chiu himself, his Fremont residence, and his vehicles before taking him into custody on October 9, just one day after the alleged assault.

Who Kelvin Chiu Is And His Role At The School

Police identified the suspect as Kelvin Chiu, 31, of Fremont, an athletic trainer employed at Archbishop Mitty High School on Mitty Way in San Jose. Diocese spokesperson Cynthia Shaw confirmed Chiu had worked at the school since May 2025 and said he was placed on administrative leave once the allegations surfaced. The San Francisco Chronicle reported Shaw also said the school had received no prior complaints about him.

That detail cuts both ways for parents trying to make sense of this. No prior red flags means the school had no documented warning signs to act on earlier. It also means an athletic trainer with direct, private access to injured teenagers went more than a year without anyone raising a concern, which says something about how much unsupervised trust these roles carry by design.

What Investigators Found When They Searched His Phone

San Francisco Chronicle reporting said officers searched Chiu’s phone and located footage matching the student’s account. Other outlets reported more broadly that detectives found child sexual abuse material on the device. Booking records show Chiu was held at Santa Clara County Main Jail on suspicion of sexual battery, annoying or molesting a minor, and production and possession of child sexual abuse material.

Those three categories of suspicion are not interchangeable. Sexual battery addresses the physical act the student described. Production and possession of child sexual abuse material addresses what investigators say they found stored separately on his phone. Together they describe a pattern investigators believe goes beyond a single reported encounter, which is likely why police are now asking whether anyone else has information.

Why Police Think There Could Be More Victims

Investigators publicly said they believe additional victims may exist and asked anyone with information to come forward. An arrest and booking allegations are not a conviction, and the case will ultimately be decided in court. But police do not issue public appeals for more victims lightly, especially in a case already built on a direct student report and a corroborating phone search.

The Bigger Pattern Behind Trusted Access Roles

Athletic trainers sit in an unusual spot of trust. They get one-on-one time with injured teenagers, often behind closed doors, under the cover of legitimate medical care. Research on young elite athletes found roughly one in ten reported sexual abuse connected to their sport, with coaches and training staff identified as the abuser in a quarter of those cases. A separate study of teen athletes found similar rates tied specifically to coaching and training staff.

An assistant athletic trainer at a private high school in San Jose was accused of sexual battery and possessing child sexual abuse material (CSAM), San Jose police said on Wednesday.https://t.co/CBdXATEjAC pic.twitter.com/DrtKhJmlB0

— NBC Bay Area (@nbcbayarea) October 16, 2026

None of that research proves what happened at Archbishop Mitty. But it explains why parents and school administrators should treat training-room access as a safeguarding issue, not just a staffing one. A school hiring someone to tend to injured kids owes those families more than a clean background check at the door. It owes them ongoing oversight of exactly the kind of private, physical-contact situations this case now centers on.