OLYMPIA, Wash. -- The Washington Corrections Department says the father-in-law of missing Utah mother Susan Powell won't be released from prison Thursday.
He's been serving time for recording images of two neighbor girls in their bathroom.
Corrections spokesman Chad Lewis said May 23 was the earliest possible date on which Steven Powell could be released, based on sentence reductions he earned in prison. Powell was sentenced in June 2012 to 2 1/2 years.
Susan Powell home video: 'If I die, it may not be an accident'
To get out early, inmates must submit an acceptable release plan. Lewis says the state is still reviewing Powell's proposed plan. If it's approved, the state still requires 35 days to allow staff to notify victims and local law enforcement.
In a letter to his son Michael, dated December 18, 2012, Steven Powell indicated he may not be moving back to his home in Puyallup, because his daughter, Alina was worried about the trouble it may cause for the family.
"One of the things Alina told me is that she would prefer that I find someplace other than our house to live," wrote Steven Powell. "The reasons are my safety, and she doesn't want the place to be a lightning rod for media and the Cox ilk" (referring to Susan Cox Powell's family).
"Also, while I am under DOC control, probation, they can walk in and breeze through the house at will, without a search warrant," Steven Powell continued. "Bottom line, I will be trying to find something they (the DOC) will approve, and have to have an approved address before I get out ofhere."
Michael Powell committed suicide in February of this year.
The letter was among the thousands of documents released by the West Valley City police when they ended their active investigation this week.
Police in Utah said this week they were closing the active part of the Susan Powell investigation. She disappeared from her home in 2009.
Her husband Josh was a focus of the investigation until he killed himself and the couple's two children last year in an explosive house fire in Washington state.