ROWAN COUNTY, Ky. (WKYT) - It has been four years, and there are still no arrests in a deadly hit and run in Rowan County. Someone hit and killed Robert Luther on the side of I-64 on May 26, 2010. He had car trouble while returning home to Tennessee after his son's high school graduation in Ohio.
"I don't know what happened. I know that he was just hit," said Ryan Luther, Robert Luther's son. "I know somebody knows what happened."
Ryan Luther's father, Robert Luther, 47, broke down in his truck on the side of the road in Rowan County. Little did he or his family know that'd be the last time Robert Luther would speak to anyone.
"It's been very hard waiting four years to find out what happened," said Ryan. "It's a life-changing experience going from having your best friend to not knowing nothing at all."
Four years later and what do they know now? Police say it was possibly a tractor-trailer manufactured in New York that hit and killed him.
"I personally wouldn't want any charges filed," said Ryan. "I just would want to know what happened."
But the person behind the wheel is a mystery still with no leads.
"Basically all we've wanted is for somebody to come forward and say what happened. At this point, we don't want no punishment," said Ryan. "Accidents do happen, and I believe something like this could've been an accident."
So it's not a family wanting justice, but it's a son wanting to know who killed his best friend.
"It gets harder day by day," said Ryan Luther. "They took a role model and a man who did his best to change people's lives."
Ryan Luther also tells us he released balloons in memory of his father this Memorial Day in Ohio where he lives.