By Debbie Emery - Breaking Celebrity News Reporter

The depth of the sickness and degradation that Steven Powell reached in regards to his daughter-in-law, Susan, was revealed on Thursday with the announcement that thousands of photos of her were seized from his home.

Obtained under public records laws by the Associated Press exactly three years after the Utah mother-of-two disappeared, many of the images were sexually explicit and appeared to have been taken without her knowledge, reported CBSNews.com.

As Breaking Celebrity News previously reported, Steven's son, Josh Powell brutally attacked his and Susan's two sons, 5-year-old Braden and 7-year-old Charlie, with a hatchet before torching his home in Washington state on February 5. All three died of smoke inhalation. He had long been suspected of his wife's murder, but he never charged.

Currently serving a 2 1/2 year sentence for 14 counts of voyeurism filming two young girls, age 9 and 8, who lived next door to him in 2006, journals released in August revealed that the 62-year-old grandfather took his fascination with Susan to a physical level by secretly recording her and watching the videos while pleasuring himself.

The convicted sex offender was never charged in connection with Susan's disappearance, but a computer file named after her initials,&nbs