SAN DIEGO - Chelsea King was only 17 years old when her life ended, but her story has touched the lives of thousands of people.
On Saturday, more than 6,000 supporters showed up at Balboa Park to help Chelsea finish the run she never got to complete at the third annual Finish Chelsea's Run event.
The Poway High School senior was killed nearly 3 years ago, while she ran at a Rancho Bernardo Park.
John Gardner, a convicted sex offender, admitted to killing Chelsea and another teen, Amber Dubois.
On Saturday, as he has in past runs, King’s father ran the course by himself before the race began to spend time with his daughter.
"It connects me," Brent King told 10News. "It makes me feel her, and be with her."
But, he's not stopping there to keep her spirit alive. Along with his wife Kelly, they've made it their mission to prevent this tragedy from happening again.
They’ve already helped get Chelsea's Law passed in California which enforces stricter punishments for sex offenders. They are also pushing for this protection in other states across the country.
Even Chelsea’s little brother, Tyler, is doing his part to keep his big sister’s memory alive.
10News first told you about the documentary he's working on with an award winning director about Chelsea's story last month.
Tyler told 10News he wants the documentary to go viral -- to get kids informed.
"This issue -- sexual predators -- that’s focused on kids and we want to give them a voice to stand up for what they should," Tyler King said.
Proceeds from the walk go towards scholarships for students who excel in school and are big supporters of community service, just as Chelsea was.