00:00:01.340 - 00:00:23.760

Yeah. Yeah, terms of these letters, help or bother you. Are you bothered much by crank calls coming into the police department? Well, not an awful lot in the zodiac case surprised me sometimes when you have a murder that gets so much public attention, you do receive

00:00:23.760 - 00:00:40.110

a lot of crank calls. But as you know, the zodiac has murdered five. He's injured. To our knowledge. Three people aren't too excited about calling in and saying that they've murdered five people. We don't have too much of that. The people, we have received information from

00:00:40.110 - 00:00:59.080

the people that are really concerned. It's real good information. We feel we've oh, investigated just thousands and thousands of individuals. And uh, and it has also sacramento that other agencies send their information. Director Sacramento on the ones close bison here to san Francisco. But actually the

00:00:59.080 - 00:01:14.290

public has been great in this case. And the information we've received has just been very helpful to have the ciphers, the symbols and the letters themselves been of any use to you at this point? No, we haven't been too successful. We've had them out with experts.

00:01:14.300 - 00:01:31.410

The latest one we had 06 months ago when he sent us a cryptogram was never broken. Uh of course we don't think that actually there was a message in there. You can't have these ciphers and they really aren't able to be broken that they're not uh

00:01:31.420 - 00:01:51.070

real cryptographic messages. There couldn't be a dummy type of symbols. And we've had them with the experts of the nation and we've been unable to break them. Well we in homicide uh of course we can only go by actual cases and uh we don't feel that

00:01:51.070 - 00:02:09.280

he's committed 10 courses, you know, he's operated throughout northern California. There could be other jurisdictions that we're unaware of Here in San Francisco, we can only tribute to one Murder. two Zodiac, which is a steinem cab driver murder. But I see in his latest letter that

00:02:09.280 - 00:02:24.920

he has said he's killed 10, but he didn't specifically state that they happened in Cala in San Francisco. Is there anything new in this letter that you view with particular interest? Well, of course, it's nice that he in the letter mentioned that he wasn't responsible for

00:02:24.920 - 00:02:34.980

the bombing to the Park police station. We hadn't run across them in our investigation. We had nothing that indicated that he did blow up the park station.