Every few years — usually when violent crime is rising — the mayor of Baltimore fires the police commissioner.
Martin O’Malley did it in 2004, using a SWAT team to oust Kevin Clark. Sheila Dixon fired Leonard Hamm amid a crime wave in 2007. And, Stephanie Rawlings-Blake axed Anthony Batts after the riot of 2015.
Now Mayor Catherine Pugh has made the familiar move, firing Police Commissioner Kevin Davis after a third consecutive year of more than 300 homicides, which raises a familiar question: Will this time make a difference?
Baltimore suffered 343 homicides in 2017 — the second most in a single year, and the most per capita in city history. More than 1,000 people...