Authorities found two bodies in a July 17 residential fire in rural Sheridan. Ronald Martin Jr., already charged with firing the shots that killed the victims, now is accused of robbing them and setting the fire, too.

A La Salle County grand jury convened Tuesday and indicted Martin, 45, of Sheridan, on new charges of armed robbery, residential arson and possession of a weapon. Armed robbery, the most serious of the three, is a Class X felony carrying six to 30 years.

Martin will be presented with his new charges when he next appears Nov. 14 in La Salle County Circuit Court. The controlling charge remains first-degree murder for the shooting deaths of Sidney Schiltz and Melissa Vissman, whose bodies were recovered in the July 17 fire.

If convicted of murdering both, Martin is headed to prison for the rest of his life. Illinois abolished the death penalty in 2011, but killing two or more people is punishable by automatic natural life in prison.

Martin is being held in the La Salle County Jail after being denied pretrial release at his last court appearance Sept. 24. He could get new trial dates at his next court appearance.

According to court records, eyewitnesses said Martin entered the rural Sheridan residence and fired a 9-mm pistol at both victims.