Northside High School student Hannah E. Gilmer died from severe traumatic internal injuries, according to an autopsy report from the state crime lab in Atlanta.
Muscogee County Coroner Bill Thrower received the information about the 16-year-old Northside student Sunday.
Gilmer was pronounced dead by Thrower just before 1 a.m. Saturday following a one-vehicle crash on County Line Road at 11:13 p.m. Friday.
It was also announced Sunday that there will be visitation for Gilmer on Tuesday from 5-7 p.m. at McMullen Funeral Home, 3874 Gentian Boulevard. Her funeral will be Wednesday at 2 p.m. at Evangel Temple on Veterans Parkway.
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A memorial service had been planned for Sunday evening at Cooper Creek Park, but, at the request of the family, it was postponed.
Kaitlyn Cross said she met Gilmer at Double Churches Middle School
"I was the new kid at the school," Cross said. "She introduced herself to me, and we became really good friends after that. She was the girl that always had a smile on her face and never let anyone get to her."
Cross noted Gilmer's positive attitude, saying she was friends with "just about everyone."
"Hannah's passing is a tragedy. It's like a nightmare -- we're all wanting to wake up from. She is going to be truly missed by everyone that got the opportunity to know her."
Talking further about the wreck Sunday, Thrower said Gilmer was ejected from the car.
According to police, the driver of the car, fellow Northside High School student Clayton Qualls, 17, is facing multiple charges, the most serious being felony homicide by vehicle.
Other charges are one count each of driving under the influence, minor in possession of alcohol, having an open container, improper lane change and two counts of not wearing a seat belt in connection with the wreck near Randall Wood Drive.
Qualls is being held without bond in the Muscogee County Jail. He has a 9 a.m. hearing in Columbus Recorder's Court today.