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No. 9422420
United States Court of Appeals for the Ninth Circuit
United States v. Kathy Henderickson
No. 9422420 · Decided August 24, 2023
No. 9422420·Ninth Circuit · 2023·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
August 24, 2023
Citation
No. 9422420
Disposition
See opinion text.
Full Opinion
NOT FOR PUBLICATION FILED
UNITED STATES COURT OF APPEALS AUG 24 2023
MOLLY C. DWYER, CLERK
U.S. COURT OF APPEALS
FOR THE NINTH CIRCUIT
UNITED STATES OF AMERICA, No. 22-30090
Plaintiff-Appellee, D.C. No.
9:21-cr-00032-DWM-1
v.
KATHY ANN HENDERICKSON, AKA MEMORANDUM*
Kathy Thorberg,
Defendant-Appellant.
Appeal from the United States District Court
for the District of Montana
Donald W. Molloy, District Judge, Presiding
Submitted August 22, 2023**
Seattle, Washington
Before: HAWKINS, GRABER, and McKEOWN, Circuit Judges.
Defendant Kathy Ann Henderickson timely appeals her conviction for
*
This disposition is not appropriate for publication and is not precedent
except as provided by Ninth Circuit Rule 36-3.
**
The panel unanimously concludes this case is suitable for decision
without oral argument. See Fed. R. App. P. 34(a)(2).
cyberstalking in violation of 18 U.S.C. § 2261A(2)(B).1 Reviewing for abuse of
discretion the district court’s admission of evidence under Federal Rules of
Evidence 403 and 404(b), United States v. Berckmann, 971 F.3d 999, 1001 (9th
Cir. 2020), we affirm.
1. The district court did not err by concluding that evidence of Defendant’s
prior acts was admissible under Rule 404(b). “Rule 404(b) permits evidence of
prior wrongs or acts to show proof of motive, opportunity, intent, preparation, plan,
knowledge, identity, or absence of mistake or accident.” United States v. Romero,
282 F.3d 683, 688 (9th Cir. 2002). “Such evidence ‘may be admitted if: (1) the
evidence tends to prove a material point; (2) the other act is not too remote in time;
(3) the evidence is sufficient to support a finding that defendant committed the
other act; and (4) (in certain cases) the act is similar to the offense charged.’” Id.
(quoting United States v. Chea, 231 F.3d 531, 534 (9th Cir. 2000)).
The court acted within its discretion when it concluded that the prior acts
evidence was material to knowledge and identity. “When the government’s theory
is one of knowledge—as here—this court has emphasized that the government
must prove a logical connection between the knowledge gained as a result of the
commission of the prior act and the knowledge at issue in the charged act.” United
1
The indictment and the parties’ briefing cite 18 U.S.C. § 2261A(2)(B), which
applies to the charged conduct. The citations to 18 U.S.C. § 2261.F in the
judgment and the district court docket are typographical errors.
2
States v. Mayans, 17 F.3d 1174, 1181–82 (9th Cir. 1994). Here, Defendant’s prior
convictions show that she knew how to use technology to impersonate another
individual and cover her tracks. See United States v. Ramos-Atondo, 732 F.3d
1113, 1123 (9th Cir. 2013) (concluding that a defendant’s prior conviction for
smuggling undocumented immigrants demonstrated knowledge of cross-border
smuggling procedures, which was evidence relevant to marijuana smuggling
charges). The prior acts also are similar enough to the charged conduct to
demonstrate a modus operandi of using the email addresses of one-time romantic
partners to send threatening messages to acquaintances. See id. (determining that
“the conviction was also relevant to show a modus operandi of smuggling
involving use of open panga boats that were to be unloaded on a dark beach in
early morning hours”).
The events underlying Defendant’s prior convictions occurred seven and
twelve years before her conduct in this case. But the court was within its
discretion to conclude that the prior acts were not too remote in time, given the
similarities between the conduct underlying those convictions and the conduct
charged in this case. See United States v. Johnson, 132 F.3d 1279, 1283 (9th Cir.
1997) (concluding that prior act evidence of events thirteen years earlier was
“sufficiently similar to the charged conduct to render it probative despite the
passage of time”).
3
2. The district court did not abuse its discretion by denying Defendant’s
Rule 403 challenge to the prior acts evidence. Rule 403 “permits district courts to
exclude relevant evidence if ‘its probative value is substantially outweighed by the
danger of unfair prejudice.’” Berckmann, 971 F.3d at 1004 (quoting Ramos-
Atondo, 732 F.3d at 1123). Although the prior acts evidence may have been
prejudicial to Defendant, that fact does not require its exclusion, particularly given
its probative value when the main defense was that someone else could be
responsible for the charged conduct. See United States v. Thornhill, 940 F.3d 1114,
1123 (9th Cir. 2019) (“[E]ven where evidence is highly prejudicial, it is not
necessarily unfairly prejudicial.” (citation and emphases omitted)). And even for
evidence with minimal probative value, including Defendant’s own statements
about her prior conviction for making a bomb threat, the district court properly
mitigated any potential prejudice by giving limiting instructions at the time of the
testimony and before the jury began deliberations. See Berckmann, 971 F.3d at
1004 (noting that the district court’s limiting instructions cabined prior acts
evidence such that it was not unfairly prejudicial).
AFFIRMED.
4
Plain English Summary
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS AUG 24 2023 MOLLY C.
Key Points
01NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS AUG 24 2023 MOLLY C.
02COURT OF APPEALS FOR THE NINTH CIRCUIT UNITED STATES OF AMERICA, No.
03KATHY ANN HENDERICKSON, AKA MEMORANDUM* Kathy Thorberg, Defendant-Appellant.
04Molloy, District Judge, Presiding Submitted August 22, 2023** Seattle, Washington Before: HAWKINS, GRABER, and McKEOWN, Circuit Judges.
Frequently Asked Questions
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS AUG 24 2023 MOLLY C.
FlawCheck shows no negative treatment for United States v. Kathy Henderickson in the current circuit citation data.
This case was decided on August 24, 2023.
Use the citation No. 9422420 and verify it against the official reporter before filing.