Latest / The Epstein Chronicles / Tyler Robinson Preliminary Hearing Transcripts (Day 2 Part 18) (9/29/26)
Transcript
- 0:00Speaker 1: What's up, everyone, and welcome back to the program. In
- 0:03Speaker 1: this episode, we're going to pick up where we left
- 0:04Speaker 1: off with day number two of the Tyler Robinson prelim hearing. Question.
- 0:13Speaker 1: At D16, Mr. Twiggs was a 912, right? According to
- 0:17Speaker 1: your electropherogram? Answer. That's correct. Yes, Mr. Twiggs was a
- 0:22Speaker 1: 912 at D16. Question 912. And did you find 912
- 0:27Speaker 1: at the location in the 8-1 sample? Answer by Agent Baker,
- 0:31Speaker 1: I'm sorry, the sample 8 or sample 7. Question, sample 8. Answer,
- 0:35Speaker 1: the only piece of information I had for sample 8
- 0:38Speaker 1: at item D16 was at 12. Question, and you said twigs?
- 0:43Speaker 1: At that was a 912, right? Answer, correct, yes. Question,
- 0:48Speaker 1: but at that location, the evidence sample was not a 912,
- 0:51Speaker 1: but a 12. Answer, that was the only piece of
- 0:54Speaker 1: information that was recovered at that location. Question, Let me
- 0:58Speaker 1: ask you about your interpretation rule for excluding someone. Is
- 1:01Speaker 1: this an accurate statement? This is from Butler's textbook. In
- 1:04Speaker 1: forensic DNA analysis, if any STR locus fails to match
- 1:08Speaker 1: when comparing the genotypes between two or more samples, then
- 1:12Speaker 1: the comparison of profiles between the question and the reference
- 1:16Speaker 1: sample is usually declared a non-match regardless of how many
- 1:19Speaker 1: other loci match. Answer, I would agree with that if
- 1:23Speaker 1: it's a single source sample. So single source, again, meaning
- 1:26Speaker 1: from one individual. If I have a DNA profile from
- 1:29Speaker 1: evidence and I compare it to a known individual, if
- 1:32Speaker 1: there's a difference at even one location, I can say
- 1:35Speaker 1: it's an exclusion. If I have a mixture, it's not
- 1:38Speaker 1: that cut and dry. I have to take into account
- 1:40Speaker 1: how many people are in the mixture, how many pieces
- 1:43Speaker 1: of information I have. Is there a potential dropout? So
- 1:46Speaker 1: just because someone may be present in a mixture doesn't
- 1:49Speaker 1: necessarily mean that I'm going to automatically exclude them. Question,
- 1:53Speaker 1: I see. At D19S, what was Mr. Twig's type? Answer,
- 1:58Speaker 1: it was 1416. Question, did you find 16 allele in
- 2:02Speaker 1: the 8A sample? Answer, no, I did not. Question, okay.
- 2:06Speaker 1: At THO, what was Mr. Twig's type? Answer, he was 79.3. Question,
- 2:11Speaker 1: did you find 7 allele in the 8.1 sample? Answer, no,
- 2:15Speaker 1: I did not. But again, this is a mixture, and
- 2:18Speaker 1: there is some dropout. So just because I didn't see
- 2:21Speaker 1: a 7, for example, does not mean I would automatically
- 2:24Speaker 1: exclude someone. Question, it's a mixture, so there was some dropout.
- 2:29Speaker 1: So did you assume that at that location, that the
- 2:31Speaker 1: allele that dropped out matched this allele? Answer, at that location, no.
- 2:36Speaker 1: There's only one individual represented there, so when comparing an elimination,
- 2:40Speaker 1: I would essentially ignore that location. I'm looking at the
- 2:43Speaker 1: other locations. where there are two individuals present. Question, okay. Now,
- 2:49Speaker 1: a couple more topics, and then we're done. When you
- 2:52Speaker 1: received this, the evidence, you got more than seven and eight, correct?
- 2:56Speaker 1: You got a number of other samples. Answer, correct, I did. Question,
- 3:01Speaker 1: you got a backpack, which you labeled as Exhibit 9,
- 3:04Speaker 1: and a bunch of items from that backpack, correct? Answer, correct, yes. Question,
- 3:09Speaker 1: you were initially told that these items related to things
- 3:12Speaker 1: that may be discarded by the suspect. Answer, so initially
- 3:18Speaker 1: we didn't have any information, so we processed that. Those
- 3:21Speaker 1: are items that are good for DNA. Not having any
- 3:24Speaker 1: information from the investigators, we processed them for DNA. As
- 3:28Speaker 1: the investigation continues, it was determined that the backpack was
- 3:32Speaker 1: potentially left behind by a bystander, and there was no
- 3:35Speaker 1: comparison needed at the time. Question, well, left behind by
- 3:38Speaker 1: a bystander, or according to your notes, at page 20,
- 3:42Speaker 1: the backpack belonged to Kirk's detailees. Answer, yeah, based on
- 3:46Speaker 1: the individual that. That was not my communication log. That
- 3:49Speaker 1: was someone else within the laboratory. That was the information
- 3:52Speaker 1: that they received. Question, before you received any samples, did
- 3:56Speaker 1: you request to perform what's called destructive testing on the samples? Answer, yes,
- 4:01Speaker 1: I did. And destructive testing is essentially consuming the sample,
- 4:04Speaker 1: cutting the cotton off the Q-tip of the swab, subjecting
- 4:07Speaker 1: it to testing so there's nothing remaining. I have to
- 4:11Speaker 1: request permission to consume prior to doing so, and I
- 4:14Speaker 1: did so in this case. question, and why did you
- 4:16Speaker 1: do that? Answer, well, that's part of our protocol that
- 4:19Speaker 1: we have to request permission to consume, and we consume.
- 4:23Speaker 1: So DNA, we can't see it. So when an item
- 4:25Speaker 1: is swabbed, we don't know how much DNA is on
- 4:28Speaker 1: the swab, if anything, or how that swab was used.
- 4:31Speaker 1: Did someone just swab using one side of it? Did
- 4:34Speaker 1: they roll it and use all sides? Because I don't
- 4:36Speaker 1: know that. It's our practice to consume that swab, and
- 4:40Speaker 1: it's our best chance to getting any DNA evidence. Question,
- 4:43Speaker 1: and that's a determination that you made in the case
- 4:46Speaker 1: before you even saw the evidence, correct? Answer, determination to consume? Question, yeah. Answer, yes. Question, okay.
- 4:54Speaker 1: Now remember I referred to that NRC report. Did they
- 4:59Speaker 1: say that their wrongfully accused person's best insurance against a
- 5:03Speaker 1: possibility of being falsely incriminated and inaudible, the opportunity to
- 5:07Speaker 1: have the testing repeated, such an opportunity should be provided
- 5:11Speaker 1: whenever possible? Answer, yes. That does say that. Question. And
- 5:15Speaker 1: does your laboratory have a policy, standard 7.4, which says,
- 5:19Speaker 1: where possible, the laboratory shall retain or return a portion
- 5:22Speaker 1: of the evidence, sample, or extract? Answer. That is correct.
- 5:27Speaker 1: And we do actually return the remaining extract, the liquid,
- 5:30Speaker 1: from our DNA testing. So we did consume the swab. However,
- 5:34Speaker 1: there was a small amount of liquid that was left
- 5:35Speaker 1: and returned. Question. On some of the items, right? Answer.
- 5:40Speaker 1: I believe on all the items. Question. Well, we'll get
- 5:43Speaker 1: into that in a minute. And that policy that I
- 5:45Speaker 1: read is from your lab policy, right? Answer, yes. Question,
- 5:49Speaker 1: the FBI lab policy? Answer, yes, it is. Question, and
- 5:53Speaker 1: then there is also similar policy from the quality assurance standard,
- 5:57Speaker 1: the FBI quality assurance standard, which says the laboratory must
- 6:01Speaker 1: have a policy on sample consumption. The policy is expected
- 6:04Speaker 1: to provide instruction for if and when the laboratory may
- 6:08Speaker 1: or may not consume a sample and any documentation, that
- 6:11Speaker 1: the laboratory requires? Answer, that is correct, yes. Question, okay.
- 6:17Speaker 1: Now your report indicates that certain samples were destroyed, consumed, correct? Answer,
- 6:22Speaker 1: that is correct, yes. Question, and which samples were consumed? Answer,
- 6:27Speaker 1: items one through six, which were swabs from possible smudge,
- 6:30Speaker 1: swabs of a hand swipe, swabs from possible sweat drop,
- 6:33Speaker 1: swabs from possible smudge, swabs of possible smudge, and swabs
- 6:38Speaker 1: from possible sweat drop. in addition to items 54 and 55,
- 6:42Speaker 1: which were swabs of swipe finger, areas, and swabs of
- 6:45Speaker 1: stairwell railing. Question, okay, so when you wrote in your
- 6:49Speaker 1: report that those items were consumed, which of those items,
- 6:52Speaker 1: and by that, you mean the actual swab was consumed? Answer, correct.
- 6:57Speaker 1: So a swab is just like a Q-tip, so the
- 6:59Speaker 1: cotton portion of that swab was cut off the wooden stick,
- 7:02Speaker 1: placed into a tube, subjected to DNA testing, so we
- 7:05Speaker 1: consider that consuming. But again, there's liquid at the end
- 7:08Speaker 1: of the process. that's returned to the field. Question, and
- 7:11Speaker 1: the normal procedure in terms of sample preservation would be
- 7:14Speaker 1: something called splitting, right? You split the swab and you
- 7:17Speaker 1: use half. You save half so that your testing results
- 7:20Speaker 1: can be replicated and retested. Answer, so yes. However, again,
- 7:24Speaker 1: I don't know how an item is swabbed. So even
- 7:28Speaker 1: if we were to cut the swab in half, it
- 7:30Speaker 1: could be that I'm testing the half that doesn't have
- 7:32Speaker 1: any DNA and the other half may have some DNA
- 7:36Speaker 1: or the swab may have a little bit of DNA
- 7:38Speaker 1: on one side and a lot on the other side.
- 7:41Speaker 1: So for the best possible chance of getting a DNA profile,
- 7:44Speaker 1: it's our practice to consume the entire swab. Question, so
- 7:48Speaker 1: for the first six items, those were swabs that were
- 7:51Speaker 1: taken from the northeast corner of the loci building, correct? Answer, correct, yes. Question,
- 7:57Speaker 1: and you used all of the swabs and you concluded
- 8:00Speaker 1: that there was no DNA present on any of those items, correct? Answer,
- 8:04Speaker 1: that is correct. Question, so you couldn't do any comparative testing. Answer, correct.
- 8:09Speaker 1: There was nothing for me to compare to. Question, okay.
- 8:12Speaker 1: What did you have left after you did that in
- 8:14Speaker 1: terms of the volume of extract? What was left? Answer,
- 8:18Speaker 1: so it was approximately 3 microliters, so a very small portion. Question,
- 8:23Speaker 1: very small portion. You actually used 10 microliters to do
- 8:26Speaker 1: your testing of those samples, right? Answer, that is correct, yes. Question,
- 8:31Speaker 1: so you didn't get any results with 10. What you
- 8:34Speaker 1: left over would not be sufficient to get any sort
- 8:36Speaker 1: of independent testing done, correct? Answer, it could be tested. However,
- 8:41Speaker 1: my expectation, if I took 10 microliters and didn't get
- 8:44Speaker 1: any DNA, the remaining three would also not give any DNA. Question, okay.
- 8:50Speaker 1: And for item 55, that was two swabs from a
- 8:53Speaker 1: stairwell railing where the suspect touched the railing, right? Answer,
- 8:57Speaker 1: as far as I know, there were swabs from a stairwell. Question,
- 9:00Speaker 1: and correct me if I'm wrong, but I understand from
- 9:03Speaker 1: your lab notes that you took that those swabs and
- 9:05Speaker 1: combine them into one sample and then use the whole sample, right? Answer,
- 9:10Speaker 1: that is correct, yes. Question, okay, before you did that,
- 9:13Speaker 1: did you inquire whether those two swabs came from different areas?
- 9:17Speaker 1: For instance, maybe the suspect touched it here, but the
- 9:20Speaker 1: other sample was taken somewhere else? Answer, I did not.
- 9:23Speaker 1: They were both labeled as coming from the same stairwell,
- 9:26Speaker 1: and they were packaged together. So our policy and procedure
- 9:29Speaker 1: is that we can combine those two together. Question, and
- 9:33Speaker 1: when you do that, you create a mixture, right? Answer,
- 9:36Speaker 1: I don't know that I would agree that combining the
- 9:38Speaker 1: two would create a mixture. Given the item of evidence
- 9:41Speaker 1: is stairwell railing, I don't necessarily expect that one swab
- 9:45Speaker 1: would have one person, the second swab would have a
- 9:47Speaker 1: different second person, and combining the two of them creates
- 9:50Speaker 1: a mixture. However, I don't know that for certain. But again,
- 9:54Speaker 1: I don't know is DNA present, so our procedure is
- 9:57Speaker 1: to combine and consume those swabs. Question 11. and in
- 10:00Speaker 1: this case, when you did that, what you got was
- 10:02Speaker 1: a complex mixture, right? Answer I did. I got DNA
- 10:06Speaker 1: from more than five individuals, so I could not provide
- 10:10Speaker 1: a conclusion. Judge Graff and Mr. Burt were at the
- 10:12Speaker 1: 430 point. I just want to inquire. Defense. Okay, I
- 10:17Speaker 1: just have... One more and then I'll be done with her.
- 10:20Speaker 1: We talked earlier about your testing of the length of
- 10:23Speaker 1: the DNA sequence, the length of the DNA boxcar, the
- 10:26Speaker 1: sequence of ACTNG within those sequences, within those boxcars, right? Answer, correct, yes. Question,
- 10:34Speaker 1: and is it true that there are different alleles that
- 10:37Speaker 1: have the same length when you measure by SDRs but
- 10:40Speaker 1: have different sequences? Answer, yes, that is possible. Question, and
- 10:44Speaker 1: I'd like to show you a chart that you have reviewed.
- 10:47Speaker 1: Could you bring up 34? And is this a chart
- 10:50Speaker 1: that I prepared and you looked at to see if
- 10:53Speaker 1: I had correctly stated what alleles were found? Answer, yes,
- 10:56Speaker 1: it is. Question, and does it, presently existing, accurately state
- 11:00Speaker 1: what the alleles are in each location? Answer, yes. Question, okay,
- 11:04Speaker 1: I would move that into evidence. It's five pages and
- 11:07Speaker 1: it's Baker 34. Judge Graff, prosecution? Prosecution, yeah, I object.
- 11:14Speaker 1: Unless this exhibit is reasonably likely to defeat the prima
- 11:17Speaker 1: facie showing a probable cause, this is irrelevant to the
- 11:21Speaker 1: preliminary hearing. Defense, your honor, this exhibit and the next
- 11:25Speaker 1: one go directly to whether the comparisons being made between Mr.
- 11:29Speaker 1: Robinson's sample and the evidence samples are usable and reliable
- 11:32Speaker 1: to make determination that is a probable contributor. Judge, I'm
- 11:37Speaker 1: not sure I'm following with what you're saying on there,
- 11:40Speaker 1: and maybe it's just because it's late in the day.
- 11:42Speaker 1: Could you repeat that? Defense, so this chart illustrates what
- 11:47Speaker 1: allele she found at each location for Mr. Twiggs and Mr.
- 11:50Speaker 1: Robinson and for the evidence samples. The 71A and 81A.
- 11:54Speaker 1: The other alleles are on here as well, but we're
- 11:57Speaker 1: going to focus on 71 and 81. And for instance,
- 12:00Speaker 1: Your Honor, you'll see that under the first reading here
- 12:03Speaker 1: is Tyler Robinson at D3 location. He is at 17, okay?
- 12:07Speaker 1: Take that down. And then if you go down to
- 12:09Speaker 1: the 71 tallow sample, which is what the topic is
- 12:12Speaker 1: of this report introduced by the state, you'll see that
- 12:15Speaker 1: she found a 17 there as well measured only by
- 12:18Speaker 1: the length of the DNA strand, and that she is
- 12:20Speaker 1: going to testify to is a location and five or
- 12:24Speaker 1: six others there are alleles, all of which measure here
- 12:27Speaker 1: a 17, but actually contain different sequences, and that her
- 12:31Speaker 1: testing that she used does not measure for those distances. Judge,
- 12:36Speaker 1: and so it relates to probable cause. That's what I
- 12:38Speaker 1: want to keep coming back to. And again, if this
- 12:41Speaker 1: was a trial, this may be a little bit different
- 12:43Speaker 1: analysis that the trial judge applies. But as a magistrate
- 12:46Speaker 1: taking a look at this and looking at probable cause standard,
- 12:49Speaker 1: how does this comport? Defense, so it comports because it
- 12:52Speaker 1: goes to the ultimate opinion expressed in the report that
- 12:55Speaker 1: the state is offering, that the report offers reliable support
- 12:58Speaker 1: that Mr. Robinson is a possible contributor. And we're asking
- 13:02Speaker 1: the court to consider that the comparisons are only based
- 13:04Speaker 1: on a limited number of length-based comparisons and that there's
- 13:08Speaker 1: a sequence differences so that she cannot distinguish, and I
- 13:12Speaker 1: believe she'll testify she cannot distinguish based on the testing
- 13:15Speaker 1: that she did in at least five separate locations, whether
- 13:18Speaker 1: the evidence sample and Mr. Robinson's sample, or for that matter, Mr.
- 13:21Speaker 1: Twigg's sample, matches the sequence difference here. And this is
- 13:25Speaker 1: my final area, and I think I can do it
- 13:27Speaker 1: very efficiently, and I think it's important for the court
- 13:30Speaker 1: to consider, especially as it relates to the comparison to Mr. Robinson.
- 13:35Speaker 1: Alright folks, we're going to wrap up right here. And
- 13:37Speaker 1: in the next episode, we're going to finish off day
- 13:39Speaker 1: number two. All the information that goes with this episode
- 13:42Speaker 1: can be found in the description box.