KANSAS CITY, Mo. — As the Kansas City Police Department’s response to Wednesday’s mass shooting at the Chiefs rally is scrutinized in the coming days, the agency’s unusual governance structure could shield it from potential public pressure. Kansas City remains the only city in Missouri that does not control its police force. The department is overseen by a five-member, mostly unelected board of police commissioners. Four are appointed by the governor and confirmed by state lawmakers. Kansas City Mayor Quinton Lucas fills the remaining spot and is the sole elected member. Republican Gov. Mike P…