Every time Black gave him the firearm it was a felony. Rittenhouse had to be trained and certified for Black to give him the weapon. It doesn't matter if Black stored the weapon for Rittenhouse. He admitted that Rittenhouse gave him the money to buy the weapon for him.
Where do you get the "Trained and Certified" crap?
Kindly cite your law, please.
You have to have hunter safety--only if you are hunting. Not for any other use.
You have to be certified for a concealed weapon permit. (Obviously, the rifle was not a concealed weapon so that did not apply).
He was not paid security, but a volunteer, so nope, not required.