On Sunday, the FBI, along with the U.S. Marshals Fugitive Task Force arrested Manuel Samano-Santoyo, 42, at his residence in Chicago.
Samano-Santoyo and three other illegal aliens kidnapped a businessman in Paxton, Ill., in December, according to police.
He is the last of the four suspects to be taken into custody, and is now being held at the Ford County Jail on an immigration detainer.
Samano-Santoyo, Eduardo Samano, 22, Rodolfo A. Cerritos, 25, and Evigan J. Marcos, 24, have all been charged with armed robbery, kidnapping and aggravated battery.
The victim, Joel Hastings, the general manager of NexStep Commercial Products in Paxton, was leaving work on Dec. 9 when he was kidnapped at gunpoint.