The mayor’s controversial gang profits ordinance stalls, what Twitter could look like under Elon Musk and avian flu is on the rise in Illinois. Plus, inside the turmoil at the Chicago Reader and the city’s role in inventing the pizza puff.

• Chicago Creeps Up American Lung Association’s List of Most Polluted Cities
• Alt-Weekly Chicago Reader Faces Uncertain Future as Dispute Over Nonprofit Agreement Continues
• Crain’s Headlines: Tyson Foods Offering Free College for Workers
• Bird Flu Drives Free-Range Hens Indoors to Protect Poultry
• Lightfoot’s Proposal to Go After Gang Profits Remains Stalled
• Elon Musk Buys Twitter for $44 Billion, Will Privatize Company
• Fourth-Generation Family Business Fries Up a Chicago Classic for More than 40 Years
• Turning Chicago’s Dead or Invasive Trees into Works of Art