Full Notification

VIDEO: https://fb.watch/7FirmDr_tt/

 

DATE/TIME: August 25, 2021

INCIDENT: PC 647 (j) - Invasion of Privacy

                    PC 311.11 (a) - Possession of Child Pornography

                    PC 311.4 (c) - Production of Child Pornography

LOCATION: Los Osos High School, City of Rancho Cucamonga

SUSPECT(S): RIDEN, David Arthur Age: 52  Resident of Rancho Cucamonga, CA

VICTIM(S): Confidential

**UPDATE ** Since Riden’s initial arrest, detectives from the Rancho Cucamonga Station have been working diligently on the case uncoveringadditional evidence related to Riden's crimes.  Detectives from the Sheriff’s Hi-Tech Investigations Division continue to conduct forensic examinations on the digital media collected from Riden’s residence and vehicle.

Immediately upon discovering additional crimes committed by Riden based on the evidence found, an arrest warrant was issued for Riden for a violation of PC 311 – Possession & Production of Child Pornography.

On August 26th, 2021 at about 5 pm, Riden was located at his residence and taken into custody without incident. Riden was booked into the West Valley Detention Center on the above charges. Detectives obtained a bail enhancement in this case and Riden is currently being held in lieu of $500,000 bail.

Detectives are continuing to examine the media found at Riden’s residenceto determine the totality of the crimes committed. Once individual victims are identified they will be contacted. The Rancho Cucamonga Police Department is aware of the concerns of the community and is working tirelessly to complete this investigation.

SUMMARY: Deputies from the Rancho Cucamonga Police Department were notified from staff at Los Osos High School of a hidden camera found in a female student restroom at the school. A covert recording device was located by a school staff member in the restroom, which is used by students at the school. Detectives from the Rancho Cucamonga Police Department immediately began an investigation.

Through the investigation, detectives located evidence showing a school staff member, David Riden, was responsible for placing the camera in the girl's bathroom.

David Riden has been employed at Los Osos High School since 2015, as the boy’s locker room attendant, and assistant coach for the varsity football team. 

Detectives obtained search warrants and searched Riden's residence and vehicle. During the searches, Detectives seized multiple electronic devices.Riden was transported back to the Rancho Cucamonga Police Department for further investigation. At the conclusion of an interview with Riden, he was arrested and booked into the West Valley Detention Center on the above charges. Detectives are continuing their investigation and will conduct a forensic examination of the items seized.

The Chaffey Joint Union High School District was immediately notified and are assisting with the investigation. On the afternoon of August 24th, 2021, Riden resigned from his position with the school district and is no longer employed there.

This is an on-going investigation. At the conclusion of the investigation, updated details will be released. 

If anyone has any information related to this investigation, they are urged to contact the Rancho Cucamonga Police Department, Detective Bureau. If you choose to remain anonymous, you may call We-Tip at 1-800-78-CRIME.

Refer: Detective Donald Patton

Station: Rancho Cucamonga Station

Phone No. (909) 477-2800​

Case No. 112109405

SHANNON D. DICUS, Sheriff-Coroner

San Bernardino County Sheriff-Coroner Department​