Missouri's top public safety official, who was appointed amid the fallout from the Ferguson police shooting, says he's resigning.
Department of Public Safety Director Daniel Isom II said in a statement Wednesday that he was stepping down to take a teaching position at the University of Missouri-St. Louis.
The former St. Louis police chief and university instructor says he's eager to return to his "true passion."
Gov. Jay Nixon appointed Isom, who is black, following the fatal police shooting of 18-year-old Michael Brown in August. Brown, who was black, was unarmed when he was shot by a white police officer in Ferguson, a St. Louis suburb.
Nixon, whose office released the statement, has faced criticism for lack of diversity in his Cabinet.
Isom's last day will be March 2.