The last of four men hired by a questionable security company to conduct a home invasion in Calhoun County has been sentenced. Luiz Diaz-Zavala plead guilty to charges in October of possessing a firearm by an illegally alien in the United States. Diaz-Zavala is sentenced to one year and one day in prison. The other men were arrested in Oxford last March, Camilo Espinoza-Medrano, Josue Lopez-Benegas and Enrique Echeverria-Benitez were all sentenced to two years and three months in prison. After completing their prison time, all four will be taken to U.S. Immigration and Customs Enforcement to begin the deportation proceedings.