The police chief of Columbus, Ohio, is stepping down amid multiple controversies — including the recent fatal shootings of two black men in the city by deputies and officers.

Columbus Police Division Chief Thomas Quinlan will move into the role of deputy chief for the department as the city conducts a national search for his replacement, Columbus Mayor Andrew Ginther announced Thursday.

Quinlan has served as chief for one year, NBC reports.

“It became clear to me that Chief Quinlan could not successfully implement the reform and change I expect and that the community demands,” Ginther said. “Columbus residents have lost faith in him and in Division’s ability to change on its own. Chief Quinlan understood.”

Ginther added in his announcement that he would soon appoint members of the city's first Civilian Review Board, that will bring oversight to the city's police, after it was approved by voters in November.