However, investigators say Reardon "failed to exercise due care in operating a motor vehicle ... and engaged in the action of putting away her cellular telephone which distracted her," a point the teen disputes.
“I wasn't doing anything,” she said.
Kaitlin Marie Hunt, 28, her baby Riley and family friend Kathy Deming, 61, of Marietta, were hit by Reardon’s SUV about 8 p.m. while trying to cross Arnold Mill Road, according to the sheriff’s office.
Riley died that night.
Days later, Hunt and Deming died.
Hunt, a Marietta native who was with the Coast Guard in Florida, had come to metro Atlanta to escape Hurricane Irma.
"I see my family's hurt, my parents' hurt," Reardon said. "I can only imagine their families' hurt must be four times what we're going through."
Arora said investigators earlier told her family they saw no basis for charges.
"No crosswalk and these people happen to be crossing, and she happened to be driving, and it's just tragic," Arora said.
Cherokee County Solicitor General Jessica Moss said she never told anyone there would be no charges.
Zoe Reardon told WSB that she is a straight-A student who has a partial scholarship to Southern Methodist University in Texas. But she now has the charges from the crash to deal with, and thinks of family members of the crash victims.
"I pray for the hearts," she said, "and I pray for their healing."