It's not often that you are able to hear a serial killers' own words and this book gives you the opportunity to do that. Ted Bundy suffered no guilt and had no remorse for his terrible acts. Instead, he blamed his environment and the kind of society in which he lived.
I got the impression that speaking in the third person gave him a 'kick.' It was his way of not confessing to the murders, but being given leave to speak of them just the same. It is debatable whether he should have been given a 'voice', something he denied his victims.
Was he mad? Legally not, because he knew what he was doing.Was he bad? Most definitely yes. In order to see his self-delusion, you need to read a book about his crimes, written in light of the facts, not in the light of his justifications.