Mantua mayor resigns after ex-police chief says he was fired for not writing enough tickets Town of Mantua and last updated 2021-04-26 14:06:32-04 MANTUA, Utah â Mantua Mayor Michael Johnson resigned Monday, days after the city's former police chief accused the mayor of firing him for not writing enough speeding tickets. city's Facebook page, but not before he named a new police chief. Craig Hamer was sworn in as Mantua's Chief of Police Monday. Photos of the ceremony were also posted to the city's Facebook page. Town of Mantua / Facebook Last week, Castro has said Johnson wanted him and his officers to write more speeding tickets on the state highway as a means of financing the police department.