Six people were injured Wednesday in a shooting at an Oakland, California, school, authorities said. The victims, all of whom are adults, were being treated at local hospitals, Mayor Libby Schaaf said on Twitter. Two were in critical but stable condition, and a third person was listed as stable at a trauma hospital, Alameda Health System CEO James Jackson said. A fourth person suffered what Assistant Oakland Police Chief Darren Allison described as non-life-threatening injuries. Two others we...