The man who was living in the mobile home where Pettis County authorities found human remains in early May has confessed to killing the victim and has been charged with first-degree murder.
During a press conference Tuesday Pettis County Sheriff Kevin Bond said Joseph Arbeiter told authorities that he killed the victim and dismembered the body.
Tuesday morning Prosecuting Attorney Jeff Mittelauser presented the case to the Grand Jury and an indictment was handed down against Arbeiter.
Pettis County deputies responded to Lot 19 of the Goodwill Chapel Trailer Park on May 4 when someone reported they had found human remains.
The manager of the mobile home park, Sherry Woolery, said she and her family were cleaning out Arbeiter's residence because he was in jail.
Arbeiter was in jail at the time for violent crimes unrelated to the murder.
As Woolery and her family were cleaning outside the apartment, they found a black metal box under a large piece of carpet. According to court documents, inside the box was a plastic bag containing two human arms. The arms were severely decayed and had been there several months.
Additional searches of the area surrounding the home turned up other body parts buried in several different gravesites.
An autopsy determined they were from a white female that was stabbed in the chest and torso area.
Court documents show that Arbeiter agreed to talk with authorities after being read his Miranda rights.
Arbeiter told authorities he stabbed the victim in the chest and put the body in the metal box. He told investigators he did not know the victims full name, only that she went by "Mandy."
Investigators then did a search to identify the victim, and found a photograph of Mandy M. Black. Upon showing Arbeiter Black's picture, Arbeiter identified her as the woman he had killed.
Additional attempts to identify the victim resulted in a positive identification of Mandy Black.
According to court documents, Arbeiter provided details of the crime and disposal of the body that investigators say only they and the perpetrator of the crime would have known.
Authorities believe the murder happened between the end of 2013 and the beginning of 2014.
Sheriff Bond also said Tuesday that Black had not been reported missing.
Arbeiter will be represented by a public defender and will be arraigned early next week.