State v. Jaron Gibbs, 885 S.E.2d 378

At a Clemson-area intersection Gibbs held a revolver in the driver’s-side window of a car; the gun fired, grazing one victim and killing another. Gibbs fled and was arrested; the revolver was never recovered.
Gibbs testified the discharge was accidental (he was offering the gun as payment; his finger was not on the trigger).
The State argued the shooting was intentional; central factual dispute was accidental vs. intentional discharge.
Detective Michael Arflin briefly explained how single-action and double-action revolvers fire; Gibbs objected that Arflin was not a firearms expert.
In closing the solicitor argued “guns do not accidentally go off” and physically demonstrated the firing mechanics as applied to the two revolver types; Gibbs objected.
Gibbs was convicted of murder and possession of a weapon during a violent crime; the Supreme Court affirmed the court of appeals: (1) admitting Arflin’s limited testimony was not an abuse of discretion, and (2) the prosecutor’s closing was permissible advocacy.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Admissibility of Arflin’s testimony about single vs. double-action revolvers	Gibbs: testimony involved specialized, technical firearms knowledge and required expert qualification under Rule 702	State: explanation was rudimentary, within common lay understanding; trial court acted within discretion	Court: trial court did not abuse discretion — Arflin’s brief, elementary explanation was admissible; but personal knowledge under Rule 602 does not exempt truly specialized subjects from Rule 702
Prosecutor’s closing: “guns do not accidentally go off” and demonstration	Gibbs: no evidentiary support for categorical claim or the demonstrative; improper argument	State: permissible argument and invited reply to defense theory; relied on Arflin’s testimony and reasonable inferences	Court: statement and demonstration were permissible advocacy and proper reply to Gibbs’s accidental-discharge defense; no reversal

State v. Ostrowski, 435 S.C. 364 (Ct. App. 2021) (lay opinion must be based on witness’s perception, not just general experience)
Hamrick v. State, 426 S.C. 638 (2019) (lay opinion inadmissible when witness lacked firsthand perceptions of incident)
Watson v. Ford Motor Co., 389 S.C. 434 (2010) (when expert testimony is necessary to present a jury question)
Graves v. CAS Med. Sys., Inc., 401 S.C. 63 (2012) (Rule 702 analysis and expert necessity principles)
State v. Jones, 423 S.C. 631 (2018) (trial court has broad discretion to decide if testimony requires expert analysis)
Babb v. Lee Cnty. Landfill SC, LLC, 405 S.C. 129 (2013) (common-knowledge exception in negligence contexts; courts must assess complexity)
Vasquez v. State, 388 S.C. 447 (2010) (limits on closing argument: confined to evidence and reasonable inferences)
Vaughn v. State, 362 S.C. 163 (2004) (invited-reply doctrine permits some otherwise improper rebuttal argument)