A state appeals panel split over a constitutional case against a mandatory firearm sentence enhancement imposed upon a juvenile.The 3rd District Appellate Court majority on April 3 found a post-conviction challenge to a 20-year sentence enhancement can move forward, writing such a penalty for minors “no longer reflects Illinois’s evolving standard of decency.”Justice Tom M. Lytton authored a nine-page opinion, noting other appellate courts and recent state law updates suggest judges can disregard such …