The final autopsy report for a Florida woman whose body was found in a shallow grave in Alabama earlier this year yields no definitive answers on how she died.

St. Clair County Coroner Dennis Russell on Monday said the final report of the autopsy for Cassie Carli, conducted by the Alabama Department of Forensic Sciences, ruled Carli’s cause of death undetermined, and the manner of death also undetermined.

Carli disappeared March 27 after meeting her ex-boyfriend, 34-year-old Marcus Spanevelo in a restaurant parking lot in Navarre, Florida to pick up their daughter following a visit with her father.

On Monday, March 28, Carli’s father reported her missing to Santa Rosa sheriff’s authorities.

The following day, her vehicle was found in the parking lot behind the Juana’s Pagodas restaurant where the pair had met for the child exchange. Her purse and its contents were inside the vehicle.

On Saturday, April 3, Carli’s body was found in a shallow grave in a barn on Highway 11 in Springville. The vacant property was one of two addresses in Springville that authorities had for Spanevelo.

Spanevelo, who had been living and working in Springville in the months prior to Carli’s disappearance, has not been charged in her death.

The investigation is ongoing by multiple law enforcement agencies in Florida and Alabama.

Spanevelo is charged with tampering with evidence, giving false information concerning a missing persons investigation and destruction of evidence. The tampering charge, authorities said, deals with Carli’s cell phone.

He was arrested in Tennessee on the same day Carli’s body was found but has since been returned to jail in Florida.

Efforts to reach the St. Clair County District Attorney’s Office for comment were unsuccessful.