A former custodian at Gloucester Catholic High School admitted to using hidden cameras to videotape students and teachers in various states of undress and pleaded guilty to multiple charges Thursday and faces a lifetime on parole, Camden County Prosecutor Warren W. Faulk announced.

John Martin, 42, of Wenonah, admitted to running a network of pinhole cameras through at least eight rooms in the Gloucester City private high school, including in classrooms, the school's weight room and backstage area, and using them to capture hours of video and a large cache of still photos, including photos found on Martin's cell phone, Faulk said.

Students used at least some of the areas where cameras were hidden as changing rooms, Faulk said, and some of the images show nudity. At least one of the students was under 16 years old, Faulk said.