Shawn Jackson, 56, faces attempted murder and aggravated battery after allegedly stabbing a man three times at a Blue Line station, nearly blinding him, and a Cook County judge ordered detention until trial. Chicago prohibits weapons on buses and trains plus lawful concealed carry on transit and rideshares for carless riders, and early Sunday a passenger allegedly shot an Uber driver after a woman told 911 a 16-year-old boy drew a gun before she fled and two armed men robbed her. The Supreme Court will discuss Novotny v. Moore this Friday, a challenge to Maryland gun-free zones including public transportation.