Legally, I agree with you. Deceiving the court about your finances makes you a liar, not a murderer. I also agree that they likely chose to be dishonest out of fear. It may be understandable, they have x amount of dollars for their defense and living expenses and they may have felt like the money was to be used for that, and not bond. The problem with their choices, though, is it is evidence that they are willing to lie, under oath, to keep him out of jail. It opens them up to character attacks, when trying to claim that they would lie about finances, to keep him out of a temporary jail term (the time in between arrest and the trial), but they wouldn't like to keep him out of prison for life. It's not evidence that he is a killer but it is evidence that when freedom is at stake, they will say what they need to say.