After Newtown: Guns in America

Jim Supica

Self - curator, The National Firearms Museum

Don Troiani

Self - gun collector, painter

Roger Lane

Self - Haverford College

Richard Slotkin

Self - Wesleyan University

David Keene

Self - president, National Rifle Association

Daniel Okrent

Self - author of 'The Last Call'

J. Edgar Hoover

Self - first director of the Federal Bureau of Investigation (archive footage)

Elaine Brown

Self - former chairman, Black Panther Party

Frank Serpico

Self - retired New York City Police Department officer

Bill Cosby

Self

Howard Safir

Self - former New York City Police Commissioner

Saul Cornell

Self - Fordham University

Charles H. Ramsey

Self - former Commissioner of the Philadelphia Police Department

John Welsh

Self - sergeant, Philadelphia Police Department

Joan Burbick

Self - author of 'Gun Show Nation'

Stephen Barton

Self - survivor of 2012 Aurora shooting