Jefferson Peter Grogan died from multiple blunt force injuries, according to the King County Medical Examiner’s Office.
At about 6:48 a.m., a 61-year-old Auburn man driving northbound along Pacific Highway South attempted to merge into the next northbound lane to the right just before the intersection with South 240th Street, according to a Kent Police media release. The Auburn man’s vehicle then collided with a motorcycle traveling in that lane. The crash threw Grogan from his motorcycle and he sustained injuries that caused his death.
Police arrested the Auburn man for investigation of vehicular homicide. A preliminary investigation by officers indicated intoxication may have been a factor in the crash. Police did not release the name of the Auburn man.
In a Facebook post about Grogan, his sister made the following comment:
“Please! Please! Please! Be aware of motorcyclists on the road! It is with deep sorrow that I have to say that 65 year Des Moines man who lost his life yesterday morning was my beloved brother Jefferson Peter! He will be missed terribly, to say the least. He is now in God’s loving hands and is now with is loving wife, Karla, their dog Winston and our parents. I miss you Jeffie!”