Zullo’s paradox is a result of the Theory of Special Relativity applied to an investigation.
Zullo is basically saying that he cannot release the results of the Cold Case Posse investigation because it’s not finished. It’s not finished because in the course of the investigation, new things are found to investigate.
It’s like a particle approaching the speed of light. The faster the particle goes, the more energy is required to accelerate it. The amount of energy required to actually reach the speed of light is infinite. In the same way the amount of investigation required to reach the release of information is also infinite because the more Zullo investigates, the more he discovers to investigate.
Zullo’s paradox relates to the well-known principle that a conspiracy theory grows to account for new evidence contradicting the theory. Therefore, it would take an infinite amount of evidence to counter a conspiracy theory.