Authorities are examining security footage taken from a gas station near where a 19-year-old Mississippi woman was found burning alive, as they hunt for the killer or killers who set the teenager and her car aflame Saturday in a gruesome murder.

No suspects or motive have been identified in the killing of Jessica Chambers, Panola County District Attorney John Champion told FoxNews.com Wednesday.

Chambers, of Panola County, was found badly burned on a road near her burning car Saturday night in what authorities have labeled a homicide.

Investigators are hoping Chambers' final words will lead them to the killer who allegedly poured accelerant down her throat before lighting her on fire in a crime that has stunned the small Mississippi community of Courtland.

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Panola County Sheriff Dennis Darby confirmed the young woman died after she was doused with a flammable liquid and set on fire on a road in Courtland, a town with a population of 460 people.

When first responders arrived at the scene, Chambers reportedly uttered a few words that might lead detectives to the murderer. Police have not disclosed what Chambers said -- or tried to say.

"They squirted lighter fluid down her throat and in her nose, and apparently they knocked her out," her father, Ben Chambers, told Fox affiliate WDBD-TV. "She had a big gash on top of her head."

"When the fire department got there, she was walking down the road on fire ... only part of her body that wasn't burned was the bottom of her feet," said Chambers, a maintenance worker at the Panola Country Sheriff's Department.

"She told them, she told them, told him who done it," he said.

Chambers was flown to a hospital in Memphis but later died. Authorities said initial autopsy results reveal that Chambers died from severe burns that covered 98 percent of her body.

Darby said detectives are working to learn who the woman may have been with before her murder -- examining her cellphone, which was left at the scene.

"She was the most beautiful and loving and kind girl I've ever known," Chambers' best friend, Alyssa Cotten, told FoxNews.com.

"She loved to cheer. She loved softball. She loved her family and her friends. She was just a big bundle of joy," said Cotten, noting that she did not believe Chambers was dating anyone at the time she was killed.

"We have no idea who did this," she said.

The Mississippi Bureau of Investigation is assisting Panola authorities.

Anyone with information on the murder is urged to contact the Panola County Sheriff's Office at 662-563-6230.