JJ: So how old would Zodiac be by now? The murders took place in the late...60s? Garcia: Yeah, December 20, 1968 to October 11, 1969 to be exact. But he was suspected of other crimes and he sent letters and codes to newspapers until 1974. Agent Morgan: Well at the very least the Zodiac would have to be about sixty by now. JJ: Yeah but it doesn't take a lot of strength to pull a trigger. Morgan: No, but it takes a lot of skill not to get caught for forty years.