A Kent man was sentenced to 45 ½ years in prison for killing a woman and burning her body in her car near Black Diamond in May 2012.
A King County jury last month found 32-year-old Kennon Fastrup of first-degree murder, second-degree arson, attempting to elude police and violating a no-contact order.
Fastrup’s co-defendant, Michelle Backstrom, 37, was also sentenced Friday, to 12 ½ years in prison. She pleaded guilty in March to second-degree murder for her involvement in the slaying of Denise Grigsby, 39, of Kent.
Grigsby’s burning car was spotted May 6 in the Black Diamond area. Her remains were found in the trunk of the burned out Toyota Camry.
According to the charges, Grigsby was killed two days before the fire following an argument with Backstrom in Backstrom’s Kent home.
Backstrom told police Fastrup beat Grigsby with a flashlight before trying to strangle her with a metal cable, charges said. She said the cable was too slippery with blood for Fastrup to hold, so she strangled Grigsby with a lanyard while Fastrup continued to beat her, according to the charges.
The King County Medical Examiner’s Office determined Grigsby died of a skull fracture and cerebral contusions.