Brendon Ray Zachary told police he's a "monster" for video-recording his daughter's 11-year-old friend while she showered, cops say.
But, he told officers, he never attempted to sell the videos he made by placing a spy cam in his family's bathroom.
It was Zachary's wife who first discovered the camera, in her husband's nightstand, she told police.
She noticed an SD card inside the camera, which was disguised as a motion sensor. That card was blank. But she found another SD card attached to an Xbox in their room, and that's where she discovered a video of the 11-year-old girl showering at their home, according to court documents.
The wife found more but told police she couldn't bring herself to watch. She grabbed the SD card and packed up her husband's laptop and turned them over to Mesa police.
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Police gained a search warrant for the residence and laptop -- on which an investigator discovered hundreds of pictures of child pornography. When police searched Zachary's home, they found several more spy cameras so small they could fit in the screw holes Zachary had bore into the bathroom wall. Zachary later would confess to officers he used the cameras to obtain images of the young girl showering, according to the documents.
As he was questioned by police, Zachary told police he collected the footage and weaved it together with other images he'd downloaded from the Internet to create a "video montage," the documents say.
Zachary told officers he never transferred or sold the recordings and that each time he downloaded underage photos, he faced an "inner struggle" and that he knew he was a monster and what he had done was unspeakable, according to the documents.
The self-described "monster" was booked into jail on two counts of unlawful recording, and 12 counts of sexual exploitation of a minor.