This comes from reporter Jannise Johnson at one of our sister papers, the San Bernardino Sun:
CHINO HILLS — A 30-year-old band teacher was arrested Thursday on suspicion he had a sexual relationship with his 16-year-old female student.
Justin Wallin was arrested on the campus of Chino Hills High School without incident, according to a written statement from San Bernardino County sheriff’s officials.
The sheriff’s department started an investigation Tuesday after the 16-year-old reported she and the teacher were sexually involved.
The girl’s parents found sexually explicit text messages from Wallin on her phone, according to the release.
The parents discovered more than 8,000 text messages from Wallin to their daughter.
Investigators learned that Wallin the and the girl engaged in sexual acts in Chino Hills, Chino and at Wallin’s house, according to the release.
Wallin was booked into West Valley Detention Center in Rancho Cucamonga on suspicion of three sex-related charges. He is now out on $100,000 bail.
Wallin in employed by the Chino Unified School District and investigators are concerned there may be other victims.