The population of the small historic town of Selma, Alabama swells once a year as people from around the nation flock to its downtown, its churches before finally gathering for the crescendo event -- walking across the Edmund Pettus Bridge.

Edgar Moore, 74, pointed to where Alabama State Troopers met him and other Bloody Sunday marchers 60 years ago.

The attack that became known as Bloody Sunday shocked the nation and galvanized support for the U.S. Voting Rights Act of 1965.