Two people at the center of a high-profile murder case in Springfield will be interviewed on national TV Friday night.

Gypsy Blancharde (photo credit; Jason Rima, KTTS)

Gypsy Blanchard and Nicholas Godejohn were charged in the killing of Blanchard’s mother in 2015.  The two were taken into custody in Godejohn’s home state of Wisconsin after 48-year-old Dee Dee Blancharde was found dead from stab wounds.

Gypsy Blanchard, who’s an alleged victim of Munchausen syndrome by proxy, will tell her story on ABC’s “20/20”.  Munchausen syndrome by proxy is a mental health problem in which a caregiver makes up or causes an illness or injury in a person under his or her care, for the purpose of personal gain.

Dee Dee kept Gypsy’s head shaved and forced her to use a wheelchair even though there was nothing wrong with her legs.  Gypsey is serving 10 years for her role in the killing.

Nicholas Godejohn

For his part, Godejohn admitted to driving to the Blanchardes’ home in Missouri to see Gypsy, and to stabbing Dee Dee. He said he and Gypsy took several thousand dollars from a safe in Dee Dee’s bedroom.

But he claims he would not have murdered Dee Dee if Gypsy had not asked him to, and said she gave him the knife. Godejohn  pleaded not guilty to first-degree murder and is awaiting trial.  He’ll tell his side of the story as well on 20/20.

At the time of the incident Gypsy Blancharde was 23-years-old and Godejohn was 26-years-old.

In 2015, Green County Sheriff’s Investigators said Gypsy admitted she knew Godejohn was going to stab her mother and did not stop it or report it to authorities.

She said after the murder she and Godejohn left the Springfield home in a cab. Both told authorities they attempted to clean up the blood before leaving.

Gypsy admitted to writing on her mother’s Facebook page, “That Bitch is dead.” That and another disturbing post were found to have been posted from Godejohn’s home in Wisconsin. Authorities there found the couple and took them into custody after a brief standoff.

Earlier, the Missouri State Highway Patrol had issued an endangered person advisory for the Blanchardes. Authorities had been called after a friend saw the posts on Dee Dee’s Facebook page.

After obtaining a search warrant, they found Dee Dee’s body face down on her bed with multiple stab wounds in her back and a slash to the back of her neck.

ABC’s 20/20 airs at 9 p.m. tonight on the network’s affiliates in Missouri.