It's been five years since Utah mom Susan Cox Powell disappeared from her home, and now the home of her incarcerated father-in-law will be searched by cadaver dogs looking for any trace of what happened to her.

The attorney representing Susan Cox Powell's parents, Judy and Chuck Cox, told ABC News affiliate KOMO that they had arranged to have cadaver dogs brought into search both the home and property of Steven Powell.

The five years since Cox Powell's disappearance have been filled with mystery and tragedy for the family. Cox Powell's husband, Josh, was considered the only person of interest in her disappearance but was never arrested or charged.

Read More About the Search for Susan Cox Powell

In 2012, he killed himself and the couple's two young sons in a fiery explosion in his home in Washington.

His father, Steven, was arrested and convicted on voyeurism charges for taking photos and videos of two young girls who lived next door to him. Prosecutors also recovered photos and video he had taken of Cox Powell before she disappeared.

Steven Powell's home is now being sold to the family of his two victims, according to KOMO. The cadaver dog search will be coordinated between that family and the Coxes, attorney Anne Bremner told the station.

"It's what any parent would do, with having a missing child, and they don't know if Susan is alive or dead. Chuck wants to satisfy himself about what is actually there or not there," Bremner said.

"From what we know of the search that happened years ago, where they found the voyeuristic materials, they didn't 'carte blanche' search the house for evidence of other types of things, as far as we know," Bremner said.