WAKE FOREST, N.C. -- Authorities say five people have been charged in the kidnapping of the father of a North Carolina prosecutor.
The father, Frank Arthur Janssen, of Wake Forest, was rescued from an Atlanta apartment late Wednesday.
John Strong, FBI special agent in charge in North Carolina, says Janssen's kidnapping was related to his daughter's prosecution of North Carolina prisoner Kelvin Melton, who is serving a life sentence for his 2012 conviction for being a habitual felon. He was also convicted of assault with a deadly weapon with intent to kill.
Authorities say Janssen's kidnappers threatened to torture him and sent text messages to his wife making demands. They also sent her a picture of her husband tied up.
Authorities did not say what the demands were.
According to CBS News, court papers revealed the FBI traced text messages not only to the kidnappers but also to a cellphone Melton was using inside the prison.
The FBI also listened in on a call as the believe Melton gave kill orders on Janssen.
"Get a bag, put it over his head, stuff something in his mouth," the caller said. "Make sure to clean the area up. ... Don't leave any DNA behind."
Hours later the FBI's Hostage Rescue Team raided the apartment in Atlanta and found Janssen.
The FBI could still be looking for others who could be involved in the part of the plot.