United States v. Krystal Wallace, 852 F.3d 778

On March 3, 2010, Krystal Wallace drove her sister from the VA hospital; a federal police officer, Mark Atlas, attempted to stop Wallace’s sister and then ordered Wallace to stop her vehicle. Wallace backed the car, Atlas jumped onto the hood, slid off after Wallace stopped abruptly, and Wallace left the scene. Atlas sustained injuries treated in the ER.
Within an hour Wallace voluntarily gave a videotaped statement at a police station saying she panicked and did not intend to hurt anyone; she later testified at trial and introduced a written summary of that statement.
The government charged Wallace under 18 U.S.C. § 111(a)(1) and (b) for assaulting a federal officer with a dangerous weapon (her car) and causing bodily injury; a jury convicted her.
The district court pretrial excluded Wallace’s videotaped statement as hearsay (but signaled the ruling was preliminary); at trial it refused to admit the video as cumulative after Wallace testified and presented the written statement.
The district court calculated a Guidelines range of 188–235 months but varied downward to 48 months; Wallace appealed challenging sufficiency of the evidence, exclusion of the videotape, Guidelines calculations, and sentence reasonableness.

Issue	Wallace's Argument	Government's Argument	Held
Sufficiency of evidence for § 111(a)/(b) conviction	Insufficient proof she acted intentionally/voluntarily or used car as a deadly weapon	Atlas’s account supports intentional conduct and use of car as a dangerous weapon	Affirmed — evidence sufficient; jury credited Atlas’s account
Exclusion of videotaped post-incident statement	Video would show demeanor near time of event and aid credibility; exclusion deprived her of meaningful cross-examination	Video was cumulative of Wallace’s live testimony and written statement; Rule 403 exclusion proper	No abuse of discretion; exclusion for cumulative evidence upheld
Admission of Atlas’s out‑of‑court statements at sentencing (degree of injury)	Hearsay about 2015 condition unreliable and should not establish degree of injury	Hearsay admissible at sentencing if sufficiently reliable; corroborated by trial testimony	Not an abuse of discretion — hearsay had indicia of reliability and Wallace could rebut
Guidelines application and reasonableness of sentence	Incorrectly applied § 2A2.2 (aggravated assault) and enhancements; sentence substantively unreasonable	§ 2A2.2 correctly applied because Wallace used a dangerous weapon with intent to injure; enhancements appropriate; variance to 48 months reasonable	Affirmed — Guidelines and enhancements properly applied; 48‑month sentence not substantively unreasonable

United States v. Drapeau, 644 F.3d 646 (8th Cir. 2011) (standard for reviewing denial of acquittal motions)
United States v. Arrington, 309 F.3d 40 (D.C. Cir. 2002) (car can be a deadly weapon only if used as such, not merely for transportation)
United States v. Yates, 304 F.3d 818 (8th Cir. 2002) (assault-by-vehicle precedents)
United States v. Harris–Thompson, 751 F.3d 590 (8th Cir. 2014) (deferential review of evidentiary exclusions; consequential error standard)
United States v. Dennis, 625 F.2d 782 (8th Cir. 1980) (Rule 403 exclusion of cumulative credibility evidence)
United States v. Garcia, 774 F.3d 472 (8th Cir. 2014) (hearsay admissible at sentencing if sufficiently reliable)
United States v. Tucker, 243 F.3d 499 (8th Cir. 2001) (clear‑error standard for sentencing fact findings)
United States v. Merrell, 842 F.3d 577 (8th Cir. 2016) (abuse‑of‑discretion review of substantive reasonableness of sentence)