HABERSHAM COUNTY, Ga. - Debbie Collier’s death has been ruled a suicide by the G.B.I. Medical Examiner’s Office, according the the Habersham County Sheriff's Office.
The Habersham County Sheriff's Office said Friday autopsy results show Collier died from "inhalation of superheated gases, thermal injuries, and hydrocodone intoxication."
Investigators met with the family before sharing the autopsy findings. The sheriff's office offered condolences to Collier's loved ones in a statement:
"The Habersham County Sheriff’s Office would like to commend Investigator George Cason and Investigator Cale Garrison for their dedication and persistence in conducting a thorough investigation. Additionally, the Habersham County Sheriff’s Office would like to thank the Georgia Bureau of Investigation, the State Fire Marshal’s Office, the Athens-Clarke County Police Department, The Tallulah Falls Police Department, the Banks County Sheriff’s Office, the Habersham County Coroner’s Office, and the Federal Bureau of Investigation for their assistance in various aspects of this complex investigation.
"The Habersham County Sheriff’s Office would also like to extend our deepest sympathies to Mrs. Collier’s family and friends. It is our hope and prayer that the findings of this investigation provide some form of closure and allow for the healing process to begin."
Collier was found dead and naked on Sept. 11 in the Chattahoochee-Oconee National Forest south of Clayton, a 90-minute drive from her home in Athens. Her husband, Steven Collier, reported her missing around 6 p.m. the day earlier. She was a discovered few feet downhill from the site of a small fire, with burns on her stomach, soot in her nostrils and clutching at a small tree.
This browser does not support the Video element.
Debbie Collier death investigation update: Full press conference
Investigators provide update on the death investigation of Georgia mother Debbie Collier.
Investigators initially said they did not see have any evidence suggesting the incident was related to a kidnapping or suicide and are still considering the case a murder investigation. Investigator George Cason said they were investigating Collier's death as if it was a murder investigation, but investigators were still waiting for autopsy results.
This browser does not support the Video element.
New surveillance footage adds a twist to Debbie Collier case
FOX 5 shows new development in the mysterious death of Debbie Collier. Surveillance footage shows her just hours before she was found dead.
DEBBIE COLLIER: WHAT WE KNOW ABOUT THE INVESTIGATION
Collier was last seen alive at a Family Dollar store on Sept. 10, purchasing several items that were found burned near her remains. She also stopped by a Chick-fil-A restaurant beforehand, the sources noted.
The missing person report came after she sent a bizarre Venmo payment to her daughter, Amanda Bearden, of almost $2,400 along with the cryptic message: "They are not going to let me go love you there is a key to the house in the blue flowerpot by the door."
Investigators have not clarified what the message meant or confirmed Collier sent it.
This browser does not support the Video element.
Debbie Collier death: Investigators looking into Venmo transfer involving Amanda Bearden
Debbie Collier's daughter said she received a note from her mother that scared her around the time investigators say Collier was seen on security video.
Bearden and her boyfriend had moved back to Athens from Maryland just a few days before her disappearance.
Bearden says law enforcement seized money from a Venmo payment her mother sent to her the day of her death. They've since released it back to her.
TIMELINE OF DEBBIE COLLIER DEATH INVESTIGATION, ACCORDING TO POLICE
This browser does not support the Video element.
Debbie Collier's daughter thinks mom took her own life
The daughter of Debbie Collier was on a podcast on Wednesday evening. She says the disturbing death of Athens office manager Debbie Collier may have been suicide.
At first, authorities said they were investigating her death as a homicide, but have since backtracked.
Bearden appeared on the "Crime on the Record Podcast" during a special live-stream last week. She revealed for the first time that she thinks her mother took her own life.
This story is breaking. Check back for details. If you have additional information, pictures, or video email newstipsatlanta@fox.com.