An Illinois state prosecutor said local police could find no evidence that Kyle Rittenhouse, 17, ever physically possessed the firearm in the state. An extradition hearing is set for Oct. 30.
Officials enacted a nightly curfew in response to unrest following the Aug. 23 police shooting of Jacob Blake and had previously said it would continue until Labor Day.
Law enforcement officials are pushing back on suggestions that police showed deference to groups of armed whites at Black Lives Matter protests ahead of fatal shootings.
Illinois teenager Kyle Rittenhouse is facing five felony charges and one misdemeanor charge in connection with a shooting in Kenosha, Wis., that left two protesters dead and another injured.