Peo v. Gilligan — Colorado appeals court upholds menacing conviction

Case
The People of the State of Colorado v. Bernard J. Gilligan
Court
Colorado Court of Appeals
Judge
Grove; Freyre; Lum
Date Decided
September 17, 2026
Docket No.
24CA0490
Topics
Menacing; Mistrial; Prosecutorial misconduct; Plain error
Source
Read the full opinion

Background

Bernard Gilligan believed that the boyfriend of his friend’s daughter was involved in identity theft against him. After sleeping at the friend’s home, Gilligan changed into black gloves, a Kevlar vest, and a hooded top, then confronted the friend while holding a large serrated machete.

The victim testified that Gilligan told her she should be scared, charged at her, choked and cornered her, and raised the machete. Her daughter witnessed the end of the encounter, and police later found Gilligan with the machete. A jury convicted him of menacing with a weapon.

The Court’s Holding

The Colorado Court of Appeals affirmed. The trial court did not abuse its discretion by denying a mistrial after an officer testified that the victim had described Gilligan as a “hitman.” The testimony was brief and apparently unelicited, the court promptly instructed jurors to disregard it, and the record supported the conclusion that the instruction cured any prejudice.

The court also rejected Gilligan’s claims of prosecutorial misconduct during voir dire and closing argument. The prosecutor did not make an improper golden-rule argument or misstate the law of menacing. Although the daughter’s agreement that Gilligan was “menacing” the victim was improper legal-opinion testimony, it did not amount to plain error given the overwhelming evidence and the isolated nature of the exchange.

Key Takeaways

  • A prompt instruction to disregard a fleeting, unelicited prejudicial remark can cure prejudice and avoid a mistrial.
  • General voir dire questions about jurors’ experiences with menacing do not necessarily ask jurors to put themselves in the victim’s position.
  • An improper witness opinion on whether conduct satisfies a legal standard may not warrant reversal under plain-error review when the evidence of guilt is overwhelming.

Why It Matters

The decision underscores the high bar for obtaining a mistrial based on a single improper witness remark, especially where the trial court immediately sustains an objection and instructs the jury to disregard it. It also illustrates that unpreserved claims concerning prosecutorial argument and legal-opinion testimony face demanding plain-error review on appeal.

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