Former co-owner of Orange City karate studio arrested on charges of unlawful sexual activity with a minor

Mugshot of Jason Mummaw / Headline SurferPhotos for Headline Surfer / TOP: Jason Mummaw, 55, former co-owner of All-American Karate in Orange City, was arrested Thursday at his Deltona, Florida residence on Thursday, April 4, 2025, by Volusia Sheriff's Office deputies on charges of unlawful sexual activity with one of his underage students. LEFT: Jason Mummaw's mugshot is shown. 

By HENRY FREDERICK / Headline Surfer

DELTONA, Fla. -- The former co-owner of an Orange City karate studio has been arrested on charges of unlawful sexual activity with a minor, a 17-year-old student at the studio, the Volusia Sheriff's Office said.

Jason Mummaw, 55, was arrested Thursday afternoon at his Deltona home and booked into the Volusia County Branch Jail without bond.

The crimes began in 2022 at the studio and Mummaw’s residence. In December 2023, the incidents were initially reported to police in DeLand and Orange City. The Volusia Sheriff's Office was later notified of the case and launched an investigation due to the allegation of an incident in the sheriff's office's jurisdiction in Deltona.

VCO obtained an arrest warrant on Thursday, and members of the Deltona Crime Suppression Team went to Mummaw’s home to take him into custody without incident.

Mummaw is charged by both law enforcement agencies: VSO’s charge is unlawful sexual activity with a minor, and OCPD’s charge is a sexual battery of a minor by a person in a position of authority.

Mummaw is no longer a co-owner of the studio, All-American Karate in Orange City. He taught there from 2016 to 2024. No additional victims have been identified at this time.

However, anyone who has information about any other potential cases is asked to contact Detective Bartzer at MBartzer@volusiasheriff.gov or call VSO Investigative Services at 386-254-1537.

Henry Frederick press card / Headline SurferAbout the Headline Surfer Byline Writer: Henry Frederick is an award-winning journalist who launched Headline Surfer in 2008, which serves greater Daytona Beach, Sanford & Orlando via HeadlineSurfer.com in Lake Mary, Florida. Frederick earned his Master of Arts in New Media Journalism from Full Sail University in Orlando. He was a breaking news reporter (metro cops & courts beat) for the Daytona Beach News-Journal for nearly a decade, and before that, he had a similar metro beat with The Journal-News/Gannett Suburban Newspapers in Rockland/Westchester counties, NY, (1989-1996). Having witnessed the execution of serial killer Aileen Wuornos in Florida's death chamber and covering other high-profile cases, Frederick has appeared on national crime documentary shows on Discovery ID, Reelz, and the Oxygen Network series "Snapped" for his analysis. •  Bio: https://henryfrederick.com.