It all started with Lori Lightfoot the idiot before Johnson.  Soooo, you can't really put all the blame on him, there's plenty of blame to go around. 

https://pjmedia.com/news-and-politics/rick-moran/2023/06/16/thugs-gangs-and-other-criminals-welcome-chicagos-new-mayor-with-38-spike-in-crime-his-first-month-n1703731?utm_source=pjmedia&utm_medium=email&utm_campaign=nl_pm&bcid=ac8fe51c54b3a1cc68c5502932751fd95db46682c77236be6b7753dae1326f41&recip=27066585