Anyone who’s ever quit a job has probably dreamed of writing a delicious “kiss my *ss” email to the companywide distribution list and hitting “send” just before they walk out the door for the last time. But a veteran Chicago police leader pretty much did it for real, although he opted to withhold actual names in favor of not-so-subtle hints about who he was writing about. The author of the red-hot communique is Melvin Roman, who was unceremoniously dumped as commander of the police district that includes Mayor Lori Lightfoot’s home after “someone” became displeased with protests that closed down...