Warren Evans unexpectedly resigned from his post as Detroit’s chief of police Wednesday. He had held the position for under a year and his rocky tenure will probably be marked by a scandal in which a 7-year-old girl was shot and killed by a police bullet in a home raid. The incident was caught on tape by a reality TV crew which was following Evans for a show called ?The Chief? about his job as the city’s top cop. The show painted him as a cowboy-like cop and may also have pushed the mayor to ask for his resignation.