MINNEAPOLIS (AP) — Barbed wire and concrete barriers surround the courthouse where the former Minneapolis police officer charged with killing George Floyd will soon go on trial, a sign of the deep uneasiness hanging over a city literally set ablaze almost a year ago in the anger over his death.

Mayor Jacob Frey and Gov. Tim Walz, both Democrats, were sharply criticized for failing to move faster to stop last summer's looting and destruction, which included the torching of a police station. Anything less than a murder conviction for Derek Chauvin is likely to test them — and the city — once aga...