Controversial Law Allows Auction of Louisville Shooter's AR-15.

Louisville Mayor Craig Greenberg is calling for change in Kentucky law that would force authorities to send the assault rifle used in the recent mass shooting to auction, ensuring that it would be back in use again, despite its role in the tragedy. Greenberg is urging legislators in Kentucky to allow for more local control on issues like guns and public safety, saying autonomy is key to addressing the root cause. There have been 147 mass shootings in the U.S. this year alone, according to the Gun Violence Archive.