A man from Washington state is wanted for killing his grandparents sometime over the weekend after coming home from prison and may be looking for gun shows to get a weapon, officials said.
The King County Sheriff's Office is looking for Michael "Chad" Boysen, 26, who had just served a nine-month sentence for a burglary conviction.
Local media identified the victims as Robert and Norma Taylor, both in their 80s.
Their car, a red Chrysler, was missing after their bodies were discovered at their Renton home on Saturday, and Boysen, who had been released from prison on Friday, was identified as the prime suspect.
Officials said that Boysen had searched the Web for gun shows across the Northwest and Nevada around the time of the killings, according to local news reports.