to -- events 15 years earlier when my own brother was the focus of news stories about -- violence. so, it was a difficult day for me. >> david, let's talk about your story for a minute. how did you come to realize your brother, ted was the unabomber, what led you to turn him in? >> you know, it is so interesting. it was my wife linda who actually suggested it. and at first i dismissed it entirely. my brother had never been violent. we had known for, maybe at least five years that he had mental problems. but it never had occurred to me he would be violent. but linda urged me to read the manife manifesto. when it came out a few weeks later, i sat there reading the manifesto expecting that i would be able to tell linda that it wasn't ted who had written it. instead having this awful sinking feeling and realizing it was just possible that she might be right. >> you said that you knew for five years that he had had