Factual and Procedural Background
Alexander returned to Brittany’s home to retrieve his belongings after an argument. When he recovered his handgun from a bedroom, another dispute arose. Alexander’s sister saw the couple struggle over the firearm. The gun discharged, striking Brittany in the chest and killing her. Alexander fled and was later apprehended after a high-speed chase.
Alexander proposed calling Larry Barksdale, a crime scene reconstructionist, former law enforcement officer, and retired forensic science professor. Barksdale intended to testify that a struggle could not be excluded as a reasonable explanation for the shooting. The State moved to exclude the testimony under § 27-702 and the Daubert/Schafersman framework.
At the pretrial hearing, Barksdale described a methodology combining physical evidence with a “cognitive process” under which he formed an initial conclusion and then argued against it. He did not know whether the method was generally accepted, acknowledged that many people did not follow it, stated that it had no measurable error rate, and conceded that his bloodstain reconstruction work had not been peer reviewed. The district court excluded his testimony as unreliable and as improperly invading the jury’s factfinding role.
The jury was instructed that manslaughter could be committed either intentionally upon a sudden quarrel or unintentionally during an unlawful act consisting of knowingly, intentionally, or recklessly causing bodily injury. The weapon instruction permitted conviction if Alexander used a firearm to commit manslaughter, without excluding manslaughter based on reckless assault.
The Court of Appeals affirmed the exclusion of Barksdale but reversed the weapon conviction associated with manslaughter and remanded that charge for a new trial. Alexander sought further review, arguing in part that his manslaughter conviction also had to be retried.
Analysis
I. Expert Testimony Based on Specialized Knowledge
A. Governing statutory and appellate standards
Neb. Rev. Stat. § 27-702 governs expert testimony. Whether a trial court selected the correct legal standard is reviewed de novo. The application of that standard to admit or exclude particular testimony is reviewed for abuse of discretion.
Citing Slater v. Ichtertz, the court defined an abuse of discretion as a decision resting on untenable or unreasonable grounds or one clearly contrary to justice, conscience, reason, and evidence. Under State v. Dolinar, statutory interpretation and other questions of law are independently decided by the appellate court.
B. The objection was sufficiently specific
Under State v. Casillas, an opponent must challenge expert evidence with enough specificity to inform the court what is disputed and to permit the court to decide whether, and to what extent, a pretrial hearing is necessary.
The State satisfied that requirement. Its motion questioned Barksdale’s qualifications and identified concrete reliability issues, including testability, peer review, error rate, controlling standards, general acceptance, and application to the facts. The opinion therefore rejects any requirement that an objecting party use additional formulaic language when the substance of the reliability challenge is clear.
C. Daubert applies beyond conventional scientific testimony
Daubert v. Merrell Dow Pharmaceuticals, Inc. established the federal reliability framework for expert evidence, and Schafersman v. Agland Coop adopted that framework in Nebraska. Under these cases, the trial court acts as a gatekeeper and asks:
- whether the expert’s reasoning or methodology is reliable;
- whether the methodology can properly be applied to the facts;
- whether the theory or technique can and has been tested;
- whether it has undergone peer review and publication;
- whether it has a known or potential error rate;
- whether standards control its operation; and
- whether it is generally accepted in the relevant community.
Freeman v. Hoffman-La Roche, Inc. supplied this nonexclusive formulation of the reliability considerations.
Alexander argued that these considerations applied only to “scientific” knowledge, not to Barksdale’s experience-based “specialized” knowledge. The court rejected that distinction. Relying on Schafersman v. Agland Coop and State v. Mason, it held that the reliability framework applies to all expert testimony admitted under § 27-702.
Kumho Tire Co. v. Carmichael and State v. Gleaton recognize that the reliability inquiry is flexible and that every listed factor need not apply in every case. Flexibility, however, does not mean that specialized testimony escapes reliability review. Rather, the trial judge may adapt the inquiry to the nature of the expertise.
D. Application to Barksdale’s methodology
The district court acted within its discretion because Alexander did not demonstrate that Barksdale’s methodology was reliable. Barksdale could not establish general acceptance, peer review, a measurable error rate, or other objective standards supporting his approach. His proposed opinion—that a struggle could not be excluded as a reasonable explanation—also amounted substantially to a theory about how the shooting occurred.
Such testimony risked invading the jury’s province. An expert may assist jurors in understanding evidence beyond ordinary experience, but the expert may not simply tell them which factual account should be considered reasonable.
II. Reckless Assault as a Predicate for the Weapon Offense
A. The instructional defect
Section 28-1205(1) criminalizes using a deadly weapon to commit a felony. The manslaughter instruction permitted conviction on several theories, including an unintentional killing during a reckless third degree assault. The weapon instruction incorporated all those theories without qualification.
That was erroneous. Under State v. Ring, a defendant cannot be convicted under § 28-1205(1) when the underlying felony is unintentional. Although State v. Ring was later disapproved on other grounds in State v. Irish, its rule concerning unintentional predicate offenses remains controlling.
State v. Pruett applied that principle specifically to reckless assault, holding that reckless assault is not an intentional offense capable of supporting a weapon-felony conviction. State v. Briggs and State v. Sepulveda further reflect the court’s continued adherence to this interpretation.
Because the jury could have based Alexander’s manslaughter verdict on reckless assault, the general weapon verdict might have rested on a legally invalid predicate. Under the harmless-error standard described in State v. Madren, the mistake was not harmless because it could have materially influenced the weapon verdict.
B. Why the manslaughter conviction remained valid
The defect concerned only the weapon instruction. Each alternative form of manslaughter given to the jury was itself legally valid and supported by evidence. The potential problem arose only when the reckless form of manslaughter was used as the predicate for the separate weapon offense.
Under State v. Abejide, where one offense may be committed in several ways and evidence supports each way, jurors need not unanimously agree on the precise manner of commission. They need only unanimously agree that the defendant committed the offense. Accordingly, the general manslaughter verdict remained valid.
C. Separate retrial of the weapon charge
Alexander argued that the weapon offense was wholly derivative and could not be retried without also retrying manslaughter. The court disagreed because § 28-1205(4) expressly treats the weapon offense as “separate and distinct” from the underlying crime.
On remand, the jury may determine whether the already-established manslaughter was committed with the intent necessary to qualify as a predicate felony. It may not convict if it finds only reckless assault. State v. Rye supported this procedural approach by illustrating that a weapon charge may be remanded while the conviction for the predicate offense remains intact.
D. Double jeopardy
Under State v. Simons, retrial is not barred when the sum of all evidence admitted at the first trial—whether properly or improperly admitted—was sufficient to sustain a guilty verdict.
The evidence of the argument, struggle over the gun, and fatal discharge could permit a jury to find either intentional sudden-quarrel manslaughter or unlawful-act manslaughter based on knowing or intentional assault. Because at least one legally sufficient route supported the weapon charge, reversal for instructional error did not operate as an acquittal and did not trigger the prohibition against double jeopardy.