Three inmates at the Concordia Parish Sheriff's Office jail were charged after another inmate was stabbed with a makeshift device following a disagreement on Oct. 8.
According to Concordia Parish Chief Investigator David Hedrick, several inmates allegedly carried out a carefully planned attack on the inmate, who was awaiting trial.
Hedrick said the inmate was stabbed twice in the head and twice in the body by the makeshift weapon.
Tyrone Jonathan Davis Jr., 28, 442 Doty Road in Ferriday, was charged with attempted second-degree murder.
Davis was in jail on a probation and parole charge.
Jalen Rayshon Humphrey, 23, 717 Virginia Ave., Ferriday, and Jarvis J. Turner, 21, 356 Concordia Park Drive, were both charged with principal to attempted second-degree murder.
The inmate was treated and released and is currently out on bond.
"The incident is still under investigation," Hedrick said.