GRANITE CITY – Madison County State’s Attorney Tom Haine announced on Friday, March 27, 2026, that a 19-year-old Collinsville man has been sentenced to 21 years in prison after pleading guilty to armed robbery stemming from the theft of a designer cross-body bag in Granite City.
Jalon O. Mathis pleaded guilty Friday in Circuit Court to a charge of armed robbery, a Class X felony, Haine said. Mathis admitted that, while armed, he stole the bag from a victim on June 23, 2025, in Granite City.
The victim told police that Mathis had arranged for a third person to purchase the bag from the victim at a Granite City business. Instead, Mathis and the third person grabbed the bag from the victim and fled, according to the victim’s account to police.
The case was prosecuted by Assistant State’s Attorney Lauren Maricle, chief of the Violent Crimes Unit at the State’s Attorney’s Office.
The Granite City Police Department conducted the investigation with assistance from other agencies, including the Illinois State Police and the U.S. Marshals Service.
