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Originally published Sunday, March 10, 2013 at 7:00 PM

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Suspect in couple’s slayings ‘extreme danger’ to public

A man wanted in connection with the slaying of his grandparents is an “extreme danger” to police and the public, King County sheriff’s detectives say.

Seattle Times staff reporter

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A man wanted in connection with the slaying of his elderly grandparents may be seeking to buy firearms, and represents an “extreme danger” to the public and police, the King County Sheriff’s Office said late Sunday.

Less than two days after Michael Chad L. Boysen completed a nine-month prison sentence at Monroe Correctional Complex, his grandparents were found dead in their Renton-area home. A warrant has been issued for his arrest in connection with the killings.

Detectives also said Boysen was conducting online searches of gun shows across the Pacific Northwest and Nevada just before or after his grandparents were slain.

A judge issued the warrant for the 26-year-old Sunday after investigators with the Sheriff’s Office said he was wanted for questioning in connection with the slayings of his 82-year-old grandfather and 80-year-old grandmother.

The couple were slain on Friday night or Saturday morning, detectives said.

A statewide alert for the couple’s missing car, a red 2001 Chrysler 300 with license plate 046-XXU, also has been issued, according to the Sheriff’s Office. Detectives urged anyone who spots the vehicle, or Boysen, to call 911 immediately. He is white, 5 feet 10 and 170 pounds, and has hazel eyes.

Boysen served time for a 2012 conviction for attempted residential burglary, according to the state Department of Corrections (DOC). He was released Friday, said DOC spokesman Chad Lewis, who noted Boysen had reported to his community corrections officer in Kent later that same day.

Sheriff’s spokeswoman Sgt. Cindi West said the victims’ bodies were discovered Saturday.

The couple had not been heard from since Friday, and a concerned relative went to their home in the 16200 block of 145th Avenue Southeast and knocked repeatedly on the door but received no answer, West said.

The King County Medical Examiner’s Office has not released the victims’ names, and investigators have not said how or when the couple were killed, other than to say the deaths were being investigated as homicides.

West declined to divulge the contents of the warrant against Boysen.

According to documents filed in King County Superior Court, Boysen has a criminal history that spans a half-decade and includes convictions for first-degree robbery, second-degree robbery and trafficking in stolen property.

His 2012 conviction stemmed from an incident in which he tried to break into an occupied home in Kent, according to court documents.

He also pleaded guilty to a series of robberies in 2006 after his mother called police to report she had found empty prescription bottles and a demand note.

According to court documents, he and a friend ultimately admitted to robbing several pharmacies and a grocery store in Kent to feed their addictions to the narcotic OxyContin.

In 2006, a prosecutor asked that his bail be raised from $5,000 to $50,000, saying Boysen posed a danger to the community and “the danger he presents is escalating,” charging documents show.

Lewis said Boysen had been labeled a high risk to reoffend.

Staff reporter Katherine Long contributed to this story. Christine Clarridge can be reached at cclarridge@seattletimes.com or 206-464-8983.

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