"He was a very special kid," said his mother, April Helton. "He said, 'I'm going to make it, I'm going to walk across that stage,' and we are all just so excited."
But four days before graduation, the high school senior died in a two-car crash on the way to take his finals.
Floyd County authorities said Keller crashed his car into another truck at Mango Road and Wayside Road at around 10:30 a.m.
He died Tuesday morning.
His family said he was on his way to school to take his finals, but the road was wet.
"The road right there is a gravel road, and it had washed, and he just lost control," said his father, Clint Helton.
His family said the community has placed hundreds of blue ribbons for Keller all across the county, including some at his high school.
They are thankful and hopeful that Caleb's friends can still enjoy the graduation ceremony.
"We want this to be bright and happy for them because that's what Caleb would want," April said.
His parents want everyone to know through their pain and their heartbreak, they feel incredibly proud of their beloved son.
"Even though Caleb's not going to be there to walk with them, he's just as much a part, and he's there," April said.
The other driver involved was released from a hospital after the crash with minor injuries.