Who is the man who took command of Baltimore's police at a time when the department faces unprecedented scrutiny and the daunting challenge of arresting a surge of violence the city has not seen in two decades? In a sudden and surprising development, Kevin Davis replaced Anthony Batts as commissioner on July 8, a day after Davis appeared on Midday, as deputy commissioner, for an hour-long interview. Davis takes over as Baltimore experiences a third consecutive month of killings, with 170 so far this year. The Sun reports that there have been twice as many non-fatal shootings as last year at this time, and robberies are up 18 percent. At noon, we listen to an encore broadcast of my July 7 interview with Kevin Davis, Baltimore's interim police commissioner.