Investigators say one driver's choice to speed took the life of an El Camino High School student over the weekend.
Now a choice of charges for that driver will be up to the district attorney after they review the factors that killed Haylie Jordan.
FOX40's cameras were the only ones invited in as about 300 people gathered Tuesday night at a vigil held in Haylie's honor at Sacramento's El Camino Baptist Church.
"The question of why is there? ... but there is no satisfactory answer for that. There's no consoling answer for that question," said Pastor Bill Grant, as he addressed the grieving crowd.
They'd come looking for answers to the Saturday crash that killed 15-year-old Haylie, looking for answers to the kind of loss many here have never had to confront before.
"I just want everybody to remember not to build walls for yourself because that's the only way you can live such a happy life for yourself like she did ... and I'm really glad that she did," said a member of her dance team, sobbing.
Stories from the dance team were just some of those shared Tuesday -- all described a teen who made others feel wisdom beyond her years and compassion beyond comprehension.
"She's helped me through a lot, and I just wanted to say how much I loved her," said one friend named Kyle, who remembered Haylie as a girl who could make anyone smile, no matter how sad they were feeling.
For the first time, her mother publicly shared some of what she's lost.
"And I'd wake up and she'd have a big smile on her face. She greeted me every morning with a smile," Jamie Davis said, as tears streamed down her face.
CHP officers say 60-year-old Patrick Montgomery was traveling at an unsafe speed when he slammed an F-150 into the back of the Ford Focus Haylie was riding in with her mom and step-dad.
Haylie died as that Focus was sandwiched between the truck and a semi on the Cap City Freeway near N Street.
"She used to love ... she used to love to dance ... and just watching her was magical," said Haylie's stepfather, Brad Davis, through tears.
Davis -- still in a wheelchair because of his injuries from the crash -- is stunned he won't be able to see his dancing girl anymore.
Her father and grandmother are overwhelmed by what's happened.
"She's going to be missed. She was loved by everyone who knew her," said her father Brandon Matlock, speaking slowly to control his emotions.
"I'm Haylie's grandma, and from the first time I ever laid eyes on her, she was the light of my life," said her grandmother, Sandy. "She just had the neatest personality... and, um, I can't believe she's gone and ... I just wanted you to know how wonderful and a beautiful person she was."
Montgomery was driving a borrowed truck at the time of the crash that killed Haylie.
The woman who lent him the F-150 says she's "heartbroken" that her truck was involved in taking the teen's life.
Investigators don't believe alcohol or drugs played a role in the wreck.