Before the crowd began walking across the Brooklyn Bridge about 5:30 p.m. , Mr. Toussaint was joined at the rally by the Rev . Al Sharpton ; the Rev . Herbert D. Daughtry , a civil rights advocate from Brooklyn ; Representative Major R. Owens ; Patrick J. Lynch , the president of the Patrolmen 's Benevolent Association ; and Randi Weingarten , the president of the United Federation of Teachers . ''