Knoxville (WVLT) -- Speed apparently is what's cost two bikers their lives, on the Dragon yesterday evening.
THP says Warren Woodruff, 72, and his passenger, Carol Woodruff crossed the double yellow line and struck an SUV hauling a boat.
The boat's trailer ran over the motorcycle and dragged the Woodruff's 50 feet before stopping.
A second motorcycle then came around a turn and struck the SUV.
No charges have been filed.
The Woodruff's were from Ocala, Florida.