Finding the driver, Marion said, will bring the family closure.
"He didn't even have a chance to fight," said Marion, who wore a green wristband that said "Donate Life." "The person who hit him is just a coward. They're living, they're breathing, they're worried about turning themselves in. Take responsibility. Give Skylar some peace."
"You got to wonder how they sleep at night," Wilkerson added.
Both parents want to see changes to Mountain Road, especially the addition of sidewalks. It is a heavily used street, they said, but it is frequently clogged.
More than 20 people have been killed along the 11-mile roadway since the early 1990s, many of them in their teens.
With only one way out of the dead-end road, Marion must pass his son's roadside memorial every day.
Giving away his son's organs seemed the right thing to do considering Skylar's generous nature, Marion said. Four people, including Kyle, received vital organs, while another person will be able to see again with the gift of Skylar's eyes, Marion said.
The families finally met outside Shock Trauma after the transplant, with many tears and hugs, said Dawn Caley, Skylar's aunt.
"I told Denise, she's like a celebrity to us," Caley said, as Wilkerson indicated she felt the same way.
Sometime in the future, Marion said, they will host a family reunion. Wilkerson, her son Kyle, and their entire clan are invited.
Anyone with information about the hit-and-run that killed Skylar Marion is asked to call Metro Crime Stoppers at 1-866-7LOCKUP.