The search continues for the grandson of an elderly couple found dead in their Renton home on Saturday.
The King County Sheriff's Office says they received information that Michael Boysen, 26, may be looking to obtain firearms. Boysen is considered to be an extreme danger to the public and police.
Detectives said the credibility of the information was bolstered by Boysen’s internet searches just before or after his grandparents' double murder.
Boysen had done an internet search of gun shows across the Pacific Northwest and Nevada.
Boysen is suspected of murdering his grandparents in their Fairwood home sometime late Friday night or Saturday morning. Friends identified the victims as Robert and Norma Taylor, who were both in their early 80s.
According to the sheriff's office, the Taylors picked Boysen up from the Monroe Corrections Complex Friday. He'd been serving time for Attempted Burglary.
That night, there was a party to welcome Boysen home from prison.
Investigators say there was no indication of the violence to come.
Both victims were found murdered. Authorities won't say how until an autopsy is completed. They were not shot.
"They brought him back to the house, they fixed up a room for him to stay in. All the things you would expect grandparents to do for a 26-year-old grandson. We are at a loss as to why he killed them," said Urquhart.
But he told others he would.
Detectives have learned Boysen talked about killing his grandparents and law enforcement when he got out of jail.
Officials also said Boysen told others he planned to get guns and kill family and law enforcement.
"We don't want another Maurice Clemmons," said King County Sheriff John Urquhart on the search for Boysen.
His family has been warned and is being cared for by police.
According to police, the couple’s daughter last heard from them around 10 p.m. Friday night.
Another family member became concerned when the Taylors didn’t answer the door Saturday and called their daughter. She went to check on them around 7 p.m. Saturday and found their bodies.
A 2001 Red Chrysler 300 is missing from the couple’s home. It has the Washington License Plate 046 XXU.
Boysen is 5-foot-10 and 170 pounds. Police are asking anyone who sees Boysen or the missing vehicle to immediately call 911.