Daryl Zero: A few words here about following people. People know they're being followed when they turn around and see someone following them. They can't tell they're being followed if you get there first.
Daryl Zero: Passion is the enemy of precision. Forget the misnomer 'crime of passion'. All crime is passionate. It's passion that moves the criminal to act, to disrupt the static inertia of morality. The client's passion for this dead woman had facilitated his downfall. And the blackmailer's passion will facilitate hers. When you live with no passion at all, other people's passion come into glaring relief.
Daryl Zero: I can't possibly overstate the importance of good research. Everyone goes through life dropping crumbs. If you can recognize the crumbs, you can trace a path all the way back from your death certificate to the dinner and a movie that resulted in you in the first place. But research is an art, not a science, because anyone who knows what they're doing can find the crumbs, the wheres, whats, and whos. The art is in the whys: the ability to read between the crumbs, not to mix metaphors. For every event, there is a cause and effect. For every crime, a motive. And for every motive, a passion. The art of research is the ability to look at the details, and see the passion.