“Notably, in October 2020, the Lake County State’s Attorney’s Office announced that the gun Rittenhouse used was never carried across state lines, contrary to numerous media stories.”
The gun Rittenhouse used that night was stored at a friend’s dad’s house and locked in a gun safe in Kenosha until the 17-year-old used it that night.
https://pjmedia.com/news-and-politics/victoria-taft/2021/11/15/the-media-were-all-wrong-kyle-rittenhouse-legally-possessed-gun-at-kenosha-riots-n1533004