Authorities still have questions following the results of an autopsy report performed on the body of a missing Florida woman who was found in a shallow grave in St. Clair County in April. 

According to reports, the final autopsy report of Cassie Carli conducted by the Alabama Department of Forensic Sciences ruled both the cause and the manner of death “undetermined.”

Carli, who went missing in March, received national media attention after she was found dead in a shallow grave in a barn located off Highway 11 in Springville.

Carli was last seen in the parking lot of a restaurant in Navarre, Florida, on March 27, where she was meeting with Marcus Spanevelo, her ex-boyfriend and father of her four-year-old daughter.

Carli’s father reported her missing on March 28, and authorities located Carli’s vehicle behind the restaurant.

According to Sheriff Bob Johnson of Santa Rosa County, Florida, Spanevelo told her father Carli told him to drop her off “in the middle of nowhere in Destin” so she could be with a friend.  

Investigators traveled over 1,500 miles searching for the missing girl and issued multiple search warrants on cars, phones, houses and properties. 

On April 2, they searched the barn in Springville and found her body, confirming her identity by a tattoo she had in an unusual location. 

Investigators did not reveal what information led them to that location but did say Spanevelo had connections to the area. 

According to reports, Spanevelo was living in Springville before Carli disappeared.

In Lebanon, Tennessee, the Tennessee Bureau of Investigation and the Tennessee Highway Patrol arrested Spanevelo after he was stopped for a traffic violation.

Johnson said in April that Spanevelo was “totally uncooperative” and that they believe he took Carli’s phone, disposed of it, and lied to authorities on multiple occasions. 

He was charged with tampering with evidence, giving false information concerning a missing person's investigation and destruction of evidence. Spanevelo is yet to be charged with Carli’s death.

Since then, Spanevelo has returned to jail in Florida. 

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