Prosecutors are trying to determine the source of a Joliet man’s bond money in light of evidence indicating he plans to sell devices that turn pistols into machine guns.

On Dec. 20, prosecutors with the Will County State’s Attorney’s Office filed a petition for a hearing on the source of bond money posted for Jesus Zambrano, 32, who has been in jail since Nov. 30 on charges of harassing and assaulting the man he wounded in a May 7 shooting.

Zambrano’s bond was set at $500,000.

Will County Assistant State’s Attorney Erin Krone said in the petition that officers searched Zambrano’s phone and discovered photos of Glock switches and Snapchat messages “indicating the defendant’s intention of selling Glock switches.”

Federal prosecutors have said those switches are designed to convert Glock pistols into fully automatic firearms.

Krone’s petition said Zambrano is not a licensed firearm dealer.

Krone said Zambrano called his sister from jail and indicated to her that she is “to take over his operation” and instructed her to reach out to his contacts to raise money for his bond.

Krone argued that “reasonable cause exists” to request a hearing on the source of Zambrano’s bond money to determine that it will not come from an illegitimate source.

The hearing on Krone’s petition was scheduled for Jan. 4.

Zambrano was released from jail July 30 but was was back in custody after he was arrested on a charge accusing him of following his alleged gun attack victim in a vehicle.

Prosecutors alleged Zambrano further committed assault when he swerved his vehicle at the other man’s vehicle, placing him in reasonable apprehension of a battery.

Zambrano has filed a petition for a certificate of innocence after a jury in 2019 found him not guilty of shooting and killing Robert Gooch in 2009. A judge has not ruled on that petition.

He was previously convicted of killing Gooch following a trial in 2016.

The 3rd District Appellate Court then reversed Zambrano’s conviction after finding his attorneys failed to impeach a witness with evidence that he received immunity to testify, as well as failing to tender a jury instruction for accomplice testimony.