King County Prosecuting Attorney Dan Satterberg will not seek the death penalty if Michael Chadd Boysen is convicted of killing his grandparents.

Satterberg announced his decision Friday.

Boysen was charged with two counts of aggravated first-degree murder in the slayings of grandparents, Norma and Robert Taylor, in their Fairwood home in March. He pleaded not guilty in early April.

Recent court hearings involving Boysen have been continued because of his health condition.

In considering whether to impose the death penalty, Satterberg is required by state law to determine whether there is reason to believe that there are not sufficient mitigating circumstances to merit leniency, according to a press release.

An extensive review of the case was made and the Taylors’ family was consulted before Satterberg made his decision.

Now, if Boysen is convicted of aggravated murder, he will spend of the rest of his life in prison without possibility of parole.

Boysen is scheduled for trial on Jan. 27 before King County Superior Court Judge Douglass North at the King County Courthouse.