From the Associated Press:
Henderson had just left a meeting of the Community Empowerment Association, which seeks to address problems in poorer black neighborhoods, and that night, had discussed ways to improve communication and trust between the black community and the police.
Henderson was speaking to a photographer for the New Pittsburgh Courier, a newspaper that covers the city’s black community, in the street next to Henderson’s car when Gromek’s patrol car drove by close enough that Henderson and the photographer pressed against Henderson’s car for safety.
According to his lawsuit, Henderson said, “Wow!”—referring to the speed with which the officer was driving down a narrow street.
Gromek then turned around, stopped and confronted both of them and asked Henderson, “Do you have a problem?” eventually arresting the teacher when he and the photographer started using a cellphone to record the encounter as onlookers gathered.