High school teacher in Monrovia accused of sex with teen

Chad Robert Miller / San Bernardino County Sheriff's Department

A high school teacher in Monrovia accused of sexual misconduct with a teen has been arrested - and authorities believe there may be more victims.

According to police, 38-year-old Chad Robert Miller of Altadena allegedly met an underage girl on a social media app and exchanged messages with her over five months. They met in person and "engaged in several illicit sexual acts," police said. 

Miller was a teacher at Canyon Oaks High School in Monrovia. 

He was arrested on Sept. 6 and booked at the West Valley Detention Center. Miller faces several charges including oral copulation with a minor and sexual penetration with a minor. His bail was set at $100,000 and he is scheduled to appear in court Sept. 8. 

SUGGESTED:

Due to Miller's position as a teacher, investigators believe there could be additional victims. Anyone with information is asked to contact the Rancho Cucamonga Police Department or We-Tip at 800-78CRIME.