AUTHOR VIDEO: DAVE CULLEN DISCUSSES COLUMBINE

On April 20, 1999, two boys left an indelible stamp on the American psyche. Their goal was simple: to blow up their school, Oklahoma City-style, and to leave "a lasting impression on the world." Their bombs failed, but the ensuing shooting defined a new era of school violence--irrevocably branding every subsequent shooting "another Columbine."

In the video below, Dave Cullen--author of Twelve's April 2009 title COLUMBINE-- discusses the 10-year odyssey of researching and writing the book the Chicago Tribune calls the book, "An astonishingly comprehensive look at the incident and the decade of struggle in its aftermath." The book-- an astonishing account of two good students with lots of friends who would ultimately evolve into cold-blooded killers-- is out in hardcover this month.