In this Thursday, April 4, 1996 file picture, Theodore John Kaczynski arrives at the federal courthouse in Helena, Mont. David Kaczynski gives talks about how he decided to turn in his older brother, ... more 
In this Thursday, April 4, 1996 file picture, Theodore John Kaczynski arrives at the federal courthouse in Helena, Mont. David Kaczynski gives talks about how he decided to turn in his older brother, Ted, leading to his conviction as the Unabomber, the anti-technology terrorist who conducted a two-decade mail bombing campaign that killed three people and injured 23 others. Since his decision, the bomber's brother has become a tireless advocate for victims of violence. (AP Photo/Elaine Thompson) less 
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Associated Press | Photo By Elaine Thompson
Sat, Jul 2, 2011 10:11 AM EDT