Investigators found the remains of 7-year-old Somer Thompson in a public landfill in Georgia Thursday.
It is a tragic ending to the search for the Orange Park, Fla., girl who disappeared this week on her way home from school.
The FBI is now at the scene and police are asking for help from the public to find her killer.
"I just love her," mother Diena Thompson said. "And I'll miss her."
A candlelight vigil for Somer turned into a memorial.
"I feel terrible," Diena added crying. "I'm guilt ridden."
Walking home from school, Monday, the second grader stormed off after having a spat with her brother.
She was never seen again.
Hundreds of volunteers, including cadets from a nearby Naval base, fanned out in search of Somer.
As part of their investigation, Clay County Sheriff's deputies trailed a municipal garbage truck 48 miles to a landfill in Folkston, Ga., to search for Somer.
Garbage from the child's neighborhood near Jacksonville is taken there.
"One of my detectives with the sheriff's office came to me Tuesday morning and said, 'You know just as a matter of routine, this is something we should do," said Sheriff Beseler. "'We should follow these trucks and see if there is any evidence.' It turned out to be the key in this case."
Somer's father told local media that investigators saw a birthmark on the body that belongs to his daughter.
"I contacted Diena -- Somer's mother -- and gave her the grim and sad news that we had made an identification of the body," Beseler added.
Investigators are waiting on the autopsy to determine the cause of Somer's death.
The search continues now for her killer. The Sheriff's office says they have questioned more than 70 sex offenders in the area.