SACRAMENTO (CBS13) – Prosecutors painted a disturbing picture of a former Citrus Heights principal accused of molesting his own students as new evidence was revealed Friday during the second day of his preliminary hearing.

A detective testified he found a TV hidden behind a mirror in a bathroom of Robert Adams’ home. It was reportedly linked to a live feed of security cameras at Adam’s now-closed private school Creative Frontiers in Citrus Heights. The prosecution also showed pictures of children that were found in the home.

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“I identified some photographs as having suspicious content and other photographs I identified as having a sticky residue on them,” an investigator said.

One of those photographs allegedly appeared to expose the crotch area of a young girl.

But Adams’ attorney, Linda Parisi, argued there’s no evidence proving anything inappropriate had taken place.

“You don’t know who took the photograph. You don’t know when the photograph was taken and the positioning of when the photo was taken, and you have no idea where it was taken,” she said.

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Three court rows were full of family members and supporters sitting behind Adams as they watched and listened to the case unfold.

“She stated that he would insert his fingers into her shorts and rub her vaginal area over her underwear,” an investigator testified of one witness’ claims.

The detective testified victims, ranging in age from 6 to 8, told him that Mr. Bob — as students called Adams — touched their private parts at school.

Prosecutors say they’ll call eyewitnesses to the crimes, but the defense argues, those witnesses wouldn’t come forward for years.

“She tells you she’s actually in a room, witnesses inappropriate conduct, and does nothing about it?” questioned Parisi.

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The preliminary hearing resumes Monday afternoon, and the prosecution believes the judge will decide if Adams’ case will go to trial by the end of the day.