Updated:PORTLAND, Ore. —
A man who is accused of killing his grandparents at a Renton home was released from the hospital on Monday and brought to the Multnomah County Jail, KPTV reports.
A four-day manhunt for Michael "Chadd" Boysen ended with an all-day standoff last Tuesday at the WestShore OceanFront Suites in Lincoln City, Ore.
Boysen's grandparents were killed at their home on the same day he was released from prison. Police said there had been a welcome home party for Boysen at his grandparents' Renton home that night.
The King County Medical Examiner identified the couple as Robert Taylor, 82 and Norma Taylor, 80.
Police described Boysen, who has been jailed six times, as an extreme danger to both law enforcement and the public.
Investigators said there was evidence Boysen was trying to stockpile weapons and that he threatened to go on a killing spree.
Those who know Boysen said he was addicted to prescription drugs and went to prison for stealing from his family and local pharmacies.
A multi-state manhunt began after police were unable to locate Boysen for questioning.
Police captured him after they received a tip from the night clerk at the motel who thought she recognized Boysen from news reports.
Boysen waived extradition back to King County and will be transported back to Washington state, where he will face charges in the killing of his grandparents.