A 61-year-old teacher and coach in San Mateo County was arrested at his Half Moon Bay home on suspicion of sexually assaulting a former student when she was a minor, and investigators believe there may be more victims.
Paul A. Farnsworth, a teacher and coach employed by the Cabrillo Unified School District, was taken into custody on August 13 after detectives with the San Mateo County Sheriff's Office obtained an arrest warrant, Patch reported. He was booked into Maguire Correctional Facility on two charges: lewd or lascivious acts with a child 14 or 15 years old, and sexual penetration by force, violence, duress, menace, or fear.
The arrest came after the woman, a former student of Farnsworth's, reported the alleged assault for the first time in early August. She told investigators that Farnsworth first sexually assaulted her in 2008, when he was her coach and she was a minor. She said a sexual relationship began roughly a year later, when she was 16 years old.
Detectives moved quickly. Within days of receiving the report, investigators secured a warrant, arrested Farnsworth at his residence in Half Moon Bay, a coastal city about 30 miles south of San Francisco, and booked him into the county jail. Authorities said the victim has been connected with community resources and support.
Investigators ask potential victims to come forward
The San Mateo County Sheriff's Office made clear that the investigation is not over. Authorities said they believe additional victims may exist and urged anyone with information to contact Detective Pitts at 650-363-4060 or by email at [email protected]. An anonymous tip line is also available at 1-800-547-2700.
That appeal matters. Cases involving adults in positions of authority over children, teachers, coaches, officers, often involve patterns of behavior that extend beyond a single victim. When one person comes forward, others sometimes follow. The fact that Farnsworth allegedly maintained access to students through a school district for years after the reported abuse raises obvious questions about what safeguards were in place and whether anyone noticed warning signs.
The case follows a disturbing pattern of authority figures facing serious criminal allegations involving minors. In Ohio, a police chief was indicted on 70 counts alleging child sex crimes spanning five years, another case in which a trusted public figure allegedly exploited that trust over an extended period.
No statement from Farnsworth has been reported. It is unclear whether he has retained an attorney or entered a plea. The Sheriff's Office has not disclosed what sport or activity Farnsworth coached, what specific school he worked at within the Cabrillo Unified School District, or whether he remains employed by the district.
Nearly two decades passed before the victim spoke up
One of the most striking details is the timeline. The alleged assault occurred in 2008. The victim did not report it until early August of this year, roughly 18 years later. That gap is not unusual in cases of sexual abuse involving minors, particularly when the abuser holds a position of authority. Fear, shame, and the power imbalance between a student and a coach can keep victims silent for years or even decades.
But the delay also raises hard questions for institutions. If Farnsworth continued working as a teacher and coach throughout that period, students were entrusted to his care for nearly two decades after the alleged crimes. Whether the school district had any prior complaints, any internal reviews, or any reason to scrutinize Farnsworth's conduct remains unanswered.
Cases like this are not isolated. A Nashville police officer resigned after filming on-duty sexual encounters inside a middle school with children present, yet another instance in which someone with institutional access allegedly exploited it in the worst possible way.
The charges Farnsworth faces are serious. Under California law, lewd or lascivious acts with a child 14 or 15 years old is a felony. Sexual penetration by force carries severe penalties as well. If prosecutors move forward with formal charges, the case is currently at the booking and suspicion stage, Farnsworth could face significant prison time.
Accountability starts with communities that refuse to look away
San Mateo County sits in one of the wealthiest and most educated corridors in the country. Cabrillo Unified serves families along the San Mateo County coastline. These are communities that invest heavily in their schools and expect their children to be safe in them.
When a teacher and coach is arrested on allegations this grave, the community deserves answers, not just about the suspect, but about the systems that surrounded him. Did the district conduct background checks? Were there complaints that went uninvestigated? Did anyone raise concerns that were dismissed?
Those questions remain open. The Sheriff's Office has not addressed them publicly, and the district has not been quoted in available reporting. The investigation is ongoing, and the public appeal for additional victims suggests detectives believe the full scope of Farnsworth's alleged conduct has not yet been uncovered.
Across the country, similar cases involving authority figures continue to surface. A police chief in Bethel stepped down after a 70-count sexual misconduct indictment that included charges involving a minor. In New Jersey, a police officer was arrested on child sex abuse materials charges. The common thread is always the same: someone entrusted with public authority allegedly used it to prey on the vulnerable.
Parents send their children to school expecting them to learn, compete, and grow, not to become victims. Every institution that places adults in positions of trust over minors owes those families more than silence when the trust is broken.

