>> these are scars that can live on throughout one's life. so it's important not only to get therapy but to get therapy from a person who's knowledgeable of this type of event. >> reporter: the investigation started after a film processing lab gave authorities some 40 photographs that featured the lewd acts. berndt was later fired when the school learned of the photos. that was last year. it took investigators a year to build their case, and they believe there are more victims. >> he was a teacher for over 30 years, and we feel that there's children out there who are not aware that they were being victimized in this manner. >> reporter: robert holguin, abc news. >> i don't even know what to say about that. >> no words for that. and the sad part here, records going back ten years show he never had any disciplinary actions, had good job reviews, so this was not a problem teacher -- >> how could this go on in a classroom? there has to be some sort of teacher's assistant in the classroom. >> or monitoring. or one of the kids would speak sooner, something like that. but he'll be in court later today. but just unbelievable. i'm going to quote one of our former anchors here, sunny hostin, saying for certain