
Sarah Stuchell
Sarah Stuchell is a physical scientist and firearms/toolmarks forensic examiner with the FBI Laboratory Division, who testified in the 2026 Caleb Flynn murder trial.
2
APPEARANCES
2
PODCASTS
012
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OCT 5
Sep 27, 2026
Trial Day 4
137:52
138:04
138:15
W
137:48WatkinsUNKNOWN
Can you walk us through what we see here?

Sarah StuchellGUEST
This is a page of my notes of the observations that I took on item two, which is the doorknob.

Sarah StuchellGUEST
If there is any issue with the packaging, such as if it was partially opened or any damage, I would make a note of that and also take a photograph of what that damage was.

Sarah StuchellGUEST
At the top you will see a table of information on the toolmark that was present.
12 MINS LATER
W
150:16WatkinsUNKNOWN
previously marked States Exhibit 195, what does this page tell you?
Trial Of Caleb Flynn Day 4: Botner Got WHAT Valentine Message?!
6:24
14:46
14:53
15:03
M
6:06Mr. MulliganUNKNOWN
So if we go to item number one, which is the door frame itself, correct? So you have that item with you?

Sarah StuchellGUEST
That door was submitted to the laboratory in Quantico, Virginia, and initial processing, including photographs and casts taken of those tool marks, were done by firearms and tool marks unit personnel in Quantico, Virginia.
8 MINS LATER
M
14:43Mr. MulliganUNKNOWN
And that's on page 66, by the way.

Sarah StuchellGUEST
By saying that the tool marks are consistent with each other, that is considered a physical visual examination.

Sarah StuchellGUEST
So within the tool mark on the item five piece of wood, there were no individual characteristics for me to do a direct comparison to do that pattern examination.

Sarah StuchellGUEST
So I'm merely notating that the measurement and the overall shape profile is consistent between what's on the item five piece of wood and tool marks that were made with the item 15 hammer.