When Forgery becomes Murder

I am twenty-five years behind on this story, but I can probably be forgiven since I was not even reading yet when it happened. In 1985 Mark Hoffman, on the verge of having his hundreds of forgeries discovered, sent bombs that killed two people before maiming himself with a third explosive. The story is reminiscent of several others I have discussed here, most notably those of Jean-Claude Romand and Brian Blackwell, in that it deals with a man who killed in order to protect his lies. Both Hoffman and Romand ended their deceptions with suicide attempts, but it is notable that neither attempt succeeded. Hoffman was obviously adept at making bombs, but only two of three he made killed their targets. I don't think that Hoffman ever intended to die.

I wonder whether these types of deception are forms of survival for some people, to such an extent that they somehow feel that they must ultimately kill or be killed (or discovered to be frauds, which is apparently just as bad). While I am extremely interested in forgery, I don't necessarily think that it is the worst possible crime, and find it almost unbelievable that a person would kill for the preservation of his forgeries. People like Mark Hoffman seem almost like another species, one that follows its own set of social/moral rules. I will probably continue to be baffled.