Texas Karate Instructor William Propper Faces Sexual Assault Charges Involving Teen Student
The martial arts community in Sugar Land, Texas, is reeling after karate instructor William Propper, 30, was arrested and charged with sexually assaulting a teenage student during a summer camp at Safety America Karate school. The allegations have sparked outrage and raised urgent questions about safety protocols in youth programs.
The Allegations
According to court documents, Propper allegedly assaulted a male student, aged 13 or 14 at the time, in a staff bathroom during a summer camp held in 2022 or 2023. The victim, who had trained under Propper since 2018, reportedly disclosed to his mother that Propper coerced him into sexual activity by telling him he was “mature enough to try out sex” and later instructed him to keep the incident a secret. The mother contacted Sugar Land Police, leading to an investigation and Propper’s arrest.
Institutional Response
Safety America Karate, where Propper worked, swiftly placed him on administrative leave pending the outcome of the investigation. In a statement, the school emphasized that classes would continue as usual and requested understanding during “this difficult time.” The school’s website lists multiple instructors with varying degrees of martial arts experience, though Propper’s specific role or credentials are not detailed in publicly available profiles.

Legal Proceedings
Propper was released on a $75,000 bond and is scheduled to appear in court. As of now, the case has not yet been forwarded to the Fort Bend County District Attorney’s Office, leaving room for further legal developments. If convicted, Propper could face severe penalties under Texas law.
Broader Implications
This case underscores the vulnerability of minors in extracurricular settings and the critical need for robust safeguards. Parents and organizations are urged to:
- Vet Instructors Thoroughly: Verify backgrounds and monitor interactions.
- Encourage Open Communication: Ensure children feel safe reporting misconduct.
- Advocate for Transparency: Demand accountability from institutions handling allegations.
A Call for Awareness
Sexual assault hotlines remain vital resources for survivors. The Propper case serves as a stark reminder that vigilance and proactive measures are essential to protect young participants in any community program.
As the legal process unfolds, the focus will remain on ensuring justice for the victim and preventing future incidents. For updates on this developing story, follow trusted news sources or official statements from Sugar Land authorities.