Susan Powell's Parents Plan Cadaver Dog Search Of Father-In-Law's Former Home

This photo provided by Washington Department of Corrections,  Steven Powell is shown.  Department of Corrections spokeswoman
This photo provided by Washington Department of Corrections, Steven Powell is shown. Department of Corrections spokeswoman Norah West says Powell will be released March 23, 2014 at the end of his 30-month sentence for voyeurism. Powell is the father-in-law of Utah mother Susan Cox-Powell, who disappeared in 2009. His son, Josh Powell, was a suspect before he killed himself and his two children in an explosive house fire in 2012. Steven Powell was convicted of voyeurism for taking photographs of two young neighbor girls as they used the bathroom in their home. (AP Photo/Washington Department of Corrections )

The parents of missing Utah mom Susan Cox Powell are planning a cadaver dog search of her father-in-law's former Washington state home.

Steven Powell -- the father of Susan Cox Powell's husband, Josh Powell -- has not resided in the residence since 2011, when he was arrested. Authorities said they found inappropriate photos of two young neighborhood girls in his home.

The photos were found while investigators were searching for evidence about his missing daughter-in-law.

According to Washington state attorney Anne Bremner, Steven Powell's former residence is now in the hands of the two girls who were victims of his voyeurism.

A photo of Susan Cox Powell and her sons

"The little girl victims who I represent obtained a $2 million judgment against Steven Powell," Bremner told The Huffington Post. "They now own his house [and] there are no restrictions left regarding searching."

Prosecutors ultimately obtained a conviction against Steven Powell for several counts of voyeurism in connection with the photos. He served nearly two years behind bars before he was released in March.

In addition to the photos of the girls, authorities found several journals during their search of Steve Powell's home that show he had a sexual obsession with Susan Cox Powell, The Associated Press reported.

Susan Cox Powell has been missing since Dec. 7, 2009, when she failed to show up for her job as a stock broker at Wells Fargo Financial in West Valley City, Utah. She was 28. Her husband told police he had been camping with their two children, ages 2 and 4, and had last seen his wife around midnight.

Suspicious of Josh Powell's story, investigators named him a "person of interest" in his wife's disappearance and he moved in with his father for a period of time after that.

Josh Powell killed himself and the couple’s two children in a house fire in February 2012.

While police do not believe Steve Powell was directly involved with Susan Cox Powell's disappearance, they do suspect he may know more about it than he has let on, the AP reported.

Bremner said she does not have a timeline for when the cadaver dogs will be brought in, but it should be soon.

"[The girls] are allowing the Coxes to search there," Bremner said. "We don't know if Susan Cox Powell is alive or dead, but [her family] will continue searching."