A head-on collision early Sunday morning at 740 Highway 153 critically injured 25-year-old Kevin Yates, and on Monday police said he had died.
His grandfather, Theo Womac, was critically injured in a motorcycle crash on Interstate 24 a few days before. That wreck happened after a cooking grill fell off a truck, causing several vehicles to wreck. Mr. Womac ran into the rear of one of those vehicles.
Friends said both the grandfather and grandson were in nearby Intensive Care Unit rooms at Erlanger Hospital.
Tiki Yates is the daughter of Mr. Womac and the mother of Kevin Yates.
The family members at one time took part in outings of the Christian Motorcyclists Association.
Chattanooga Police traffic investigators responded to the Highway 153 accident just before 2 a.m. and quickly determined that a Jeep Wrangler driven by 32-year-old Latisha D. Stephens was traveling north in the southbound lane.
Ms. Stephens hit a Chrysler mini-van driven by Mr. Yates. The collision critically injured Mr. Yates, who was taken to Erlanger with multiple life-threatening injuries.
Ms. Stephens was not seriously injured.
Traffic investigators are checking to see if the crash is alcohol-related and charges are pending further investigation.