SEATTLE — A man who strangled and robbed his grandparents after they celebrated his release from prison was sentenced Friday to life behind bars at a court hearing punctuated by his profanity-riddled outburst.
That was the only possible sentence for Michael Chadd Boysen, 27, after he entered a guilty plea to aggravated murder charges Oct. 4 for the killings last March of Robert Taylor, 82, and Norma Taylor, 80, at the Renton home where they had thrown him a party.
King County prosecutors did not seek the death penalty.
Defense lawyers had asked for a 40-year sentence because of Boysen’s history of mental illness and suicide attempts.
Boysen was found with self-inflicted cuts when he was arrested after a standoff at a Lincoln City, Ore., motel three days after the killings.
King County Superior Court Judge Douglas North said he saw no basis to deviate from the law, even if that were possible.
Boysen became angry and screamed profanity when family members spoke at Friday’s sentencing, KIRO reported.