As Narlacat said, and it is true, any evidence that John Ramsey lies is central to his role as a suspect in the case, and yes, that includes his integrity and capacity for telling the truth, or lack thereof, even many years ago. Every word John said in his official interviews is supposed to be true. If any of it is not true, then he hampers the investigation, because the investigators rely on the truth of what he says to develop their leads and determine what physical items in the house may be clues to an intruder and which items are not. But John Ramsey has already demonstrated his comfort with not telling the truth. He had to have told lies for a sustained period during his affair. These lies were told to an adult woman by an adult man, both of whom were in their middle thirties, and are not the lies of a child. The mere fact that John was able to lie to his own wife, the woman he married, had sex with, and who gave birth to his children, the woman who is supposed to know more about him than anyone else but himself, shows how easy it would be for him to lie to far less intimate authorities about something as important as whether he was involved in his daughter's death.
