Police are looking for the grandson of an elderly couple found dead in a Renton home on Saturday. They are also searching for the couple's vehicle.

Michael Boyson, 26, is not a suspect, the King County Sheriff's Office says. They say he is unaccounted for.

Deputies responded to the home in the 16200 block of 145 Ave SE around 6 p.m. after the woman called 911 and reported she had found her 82 year-old father and 80- year-old mother dead.

Police are calling it a double homicide. Detectives have not released details about the crime scene or manner of death.

The couple's red 2001 Chrysler 300 with Washington license plate 046XXU is missing from their home.

Police are asking anyone who sees the vehicle to immediately call 911.

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