OC Kids Gymnastics Coach Faces Child Sex Charges

ORANGE COUNTY, CA — A 25-year-old Orange County man was arrested following allegations he groomed and had an inappropriate sexual relationship with a girl he coached, authorities said Wednesday.

Jacob Alexander Demmin, of Yorba Linda, was booked into Orange County Jail and faces multiple charges, including sodomy with a person under 18 years, contacting a minor with the intent to commit lewd acts, sexual penetration with a foreign object, annoy or molest a victim under 18 and unlawful sex with a minor.

According to Orange County Sheriff's Department investigators, a victim contacted the OCSD after she learned that Demmin was still coaching children.

The victim told investigators in 2021, while Demmin was employed as a gymnastics coach at Firestorm Free Running and Acrobatics Gym in Santa Ana and Westminster, he groomed her, engaged in inappropriate communication and had an inappropriate sexual relationship with her while she was a minor.

Investigators learned soon after that Demmin currently works as a gymnastics coach at Ultimate Ninjas Gym in Anaheim Hills.

Due to Demmin's proximity to minors through his employment, OCSD investigators believe there may be additional victims.

Anyone with information was urged to contact the Orange County Sheriff's Department's Special Victims Detail at 714-647-7419.

Anonymous tips may also be submitted to Orange County Crime Stoppers at 855-TIP-OCCS.