The Black Officer Who Detained George Floyd Had Pledged to Fix the Police

Given his background, Mr. Kueng thought he had the ability to bridge the gap between white and black worlds, Mr. Jones said. He often did not see the same level of racism that friends felt. Mr. Jones, who is black, recalled a road trip a few years ago to Utah with Mr. Kueng, a white friend and Mr. Kueng’s girlfriend, who is Hmong. Mr. Jones said he had to explain to Mr. Kueng why people were staring at the group.

“Once we got to Utah, we walked into a store, and literally everybody’s…