Investigators looking for grandson of couple found dead in Renton home

Updated:

RENTON, Wash. —

A couple was found dead inside a home in the Fairwood area Saturday night, and detectives are looking for the couple’s grandson, said the King County Sheriff’s Office.

After 6 p.m., deputies were dispatched to a house in the 16200 block of 145th Avenue Southeast after a 911 call.

According to the Sheriff’s Office, a woman reported that she found her parents dead in their home. 

When police arrived, they found an 82-year-old man and his 80-year-old wife dead inside the home.

Detectives are investigating the incident as a double homicide.

As of Sunday, detectives have a warrant for the couple’s 26-year-old grandson and he is wanted for questioning. 

Authorities described Michael Boysen as a white man, 5 feet 10 inches tall and weighing 170 pounds.  

KIRO 7 Eyewitness News reporter Deborah Horne spoke with Ronna Smith, who moved into the neighborhood four months ago. She never met Boysen’s grandparents, and didn’t hear anything about the couple on Saturday either. 

“It’s really scary that it happened two doors down,” Smith said. “We were home Friday evening, and we left the house at about two in the afternoon on Saturday. And when we came home, at about 8 o’clock, it was full of police cars.”

People who knew Boysen told KIRO 7 that he loved his grandparents, but was also troubled too. Boysen was addicted to prescription drugs and would steal from those closest to him, which landed him in jail.

Boysen’s prison record goes back to 2006 when he was 19 years old. He was released from prison on Friday.

Investigators are also looking for the couple’s vehicle.

The vehicle is described as a red, 2001 Chrysler 300 with Washington plate 046XXU. 

Anyone who sees the grandson and vehicle is urged to call 911 immediately.