This month, a grand jury declined to indict the officers.
On June 4, Mr. Gugino, an activist and a member of the Western New York Peace Center, joined protesters in Niagara Square, the lawsuit says. After days of protests in the city, a curfew was put in place for June 2 to June 8, from 8 p.m. to 5 a.m.
The lawsuit says that Mr. Gugino arrived at the square and went to City Hall, where approximately 15 protesters were on the sidewalk and steps, at about 7:28 p.m.
According to the lawsuit, Mr….