A high school football coach in California was arrested Friday after students discovered a cellphone secretly recording them while they were changing inside a campus locker room, police said.The phone belonged to Jeffrey Pribble, a 48-year-old teacher at Tracy High School, located east of San Francisco, the Tracy Police Department said Saturday.According to the school's website and social media accounts, Pribble is the varsity football head coach and works in the school's physical education program.Pribble has held the coaching position for five years and has 22 years of experience as an educator with the district, according to his Facebook page.SCHOOL EMPLOYEE ACCUSED OF SECRETLY FILMING 12 GIRLS IN CHANGING ROOM FACES NEW CHARGESFILE — People walk into Tracy High School in Tracy, California, where football coach Jeffrey Pribble was arrested Friday.(Google Maps)The discovery was made Thursday when a student and several classmates found the phone recording inside the locker room, officials said.The students stopped the recording, deleted the video and turned the device over to a teacher.By Thursday evening, a concerned parent then contacted Tracy police patrol officers, prompting school resource officers and detectives to open an investigation.The following day, officers determined that the phone belonged to Pribble, who was arrested Friday.The Tracy Unified School District placed Pribble on leave pending the outcome of separate criminal and district investigations, officials said.According to the Pleasanton Weekly, Tracy High Principal Jon Waggle acknowledged the arrest of an employee in an email to parents.FLORIDA MIDDLE SCHOOL TEACHER ADMITS TO YEARS OF 'INAPPROPRIATE' CONVERSATIONS WITH FORMER STUDENT: DEPUTIESFILE — Jeffrey Pribble served as Tracy High School’s varsity football coach for five years and worked in the district for 22 years, according to his Facebook page. (Google Maps)The school did not identify the teacher or the specific allegations bu...