Two people charged in connection with the murder of a young woman whose dismembered body was found in a Campbell freezer plead not guilty during their first court appearance Tuesday.

Twenty-seven-year-old Andrew Herrmann and 27-year-old Michelle Ihlenfeld were arrested by Youngstown police after they were indicted Thursday by a Mahoning County Grand Jury.  

They are charged in connection with the death of 28-year-old Shannon Graves.

Her dismembered body was allegedly stuffed into trash bags and left in the freezer in a Campbell basement last year.

The indictment said Ihlenfeld is the wife of Herrmann and they allegedly obstructed the investigation into Graves' death. 

A third suspect, Arturo Novoa, aka Anthony Gonzalez, had been arrested and charged back in July of last year. 

On Thursday, the Grand Jury handed up new charges against him. 

The indictment said Herrmann allegedly helped Novoa in the mutilation, destruction, and concealment of Graves' body. It also alleges Herrmann helped to find a location to burn Graves' belongings and burn them.

The court said Ihlenfeld, Novoa, and Herrmann, along with an unnamed person, allegedly tried to hinder the investigation by destroying or concealing evidence of Graves' death.

Novoa is now facing 44 charges, Herrmann is facing 14 charges and Ihlenfeld faces four charges.

Herrman and Ihlenfeld are now awaiting a bond hearing, which is set for Friday.