Yet his father signed the FOID card, I think that was a decision that warrants civil penalties and social scorn at the very least.
On that I do agree and yes as the sponsor I feel that he should be punished; not to the extent that his son should be but something that says "you were the sponsor, you needed to do better". Also, this I definitely not an easy subject to come up with a one sized solution to, there are parts of me that fundamentally agree that he was a train wreck in the making, but the notion of punishing someone for something they 'might' do is a hard line to cross in my mind.
I looked up the Illinois FOID sponsor affidavit, the text is below. It looks like the main focus is ensuring that a prohibited person isn't using their children to obtain firearms, but the sentence is not going to bode well for the father.
Parent or Legal Guardian Signature Certification: I being first duly sworn upon oath, states as follows: (1) I am not currently prohibited from holding a FOID card insofar as: (a) I have not been convicted of a felony or have been granted relief from such conviction to hold a FOID card; (b) I have not, in the past 5 years, been a patient in a mental institution or any medical facility used primarily for the care or treatment of persons for mental illness; (c) I am not addicted to narcotics; (d) I am not intellectually disabled; (e) I am not subject to an existing order of protection which prohibits me from possessing a firearm; (f) I have not, within the past 5 years, been convicted of battery, assault, aggravated assault, violation of an order of protection, or a substantially similar offense in which a firearm was used or possessed; (g) I have not ever been convicted of a domestic battery or a substantially similar offense (misdemeanor or felony); (h) I have not been adjudicated a delinquent minor for the commission of an offense that if committed by an adult would be a felony; (i) I am not an alien who is unlawfully present in the United States; and (j) I have never been adjudicated as a mental defective. (2) I hereby give my consent for this minor applicant to possess and acquire firearms and firearm ammunition and understand I shall be liable for any damages resulting from the minor applicant’s use of firearms or firearm ammunition. FURTHER AFFIANT SAYETH NOT.