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2018 COA 137
Colo. Ct. App.
2018
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Background

  • At a bar, defendant Brian Koper was punched twice by Abram; Koper drew a legally carried firearm and aimed it at Abram, then handed the gun to his fiancée and left.
  • Prosecutors charged Koper with two counts of felony menacing naming bystanders M.B. (a security guard) and B.B. (a patron) as victims, plus prohibited possession of a firearm while under the influence.
  • Koper testified he drew the gun to defend himself from Abram and perceived an ongoing threat; some prosecution witnesses placed the gun as pointed at the named victims or waved about.
  • Defense tendered self-defense (defense of person) instructions; trial court refused affirmative self-defense instructions as to the two named victims but allowed a general theory-of-the-case statement describing Koper’s claim he used the gun to hold his assailant at bay.
  • During cross-examination the prosecutor repeatedly asked Koper to opine on whether prosecution witnesses were lying or mistaken; defense did not object at trial.
  • The jury convicted on all counts. On appeal the court reversed the two felony menacing convictions for erroneous denial of transferred-intent self-defense instructions and reversed the firearms-possession conviction for prosecutorial misconduct.

Issues

Issue Plaintiff's Argument Defendant's Argument Held
Whether defendant was entitled to a self-defense instruction as to the named bystander victims (transferred-intent self-defense) The People argued Koper didn’t act in self-defense as to M.B. or B.B. because he acted against Abram, who was not charged. Koper argued his intent to defend against Abram could transfer to bystanders who were incidentally affected, so he was entitled to a self-defense instruction on the menacing counts. Court held transferred-intent self-defense is available; credible evidence supported giving self-defense instructions as to both menacing victims, and denial was not harmless — menacing convictions reversed.
Whether prosecutor’s repeated "were they lying" questions required reversal of the firearms-possession conviction The People argued the questions highlighted conflicts and did not ask Koper to opine on veracity. Koper argued the cross-examination repeatedly invited him to comment on other witnesses’ credibility, which is categorically improper. Court held the cross-examination was improper, the error was plain and substantial under Liggett, and reversal of the prohibited-possession conviction was required.
Whether the trial court erred in giving or refusing a BAC-presumption instruction (and related expert testimony) The People implicitly argued the driving-related BAC presumption was inapplicable absent blood/breath analysis. Koper sought an instruction and expert testimony tying his estimated BAC (< .05) to statutory presumptions/inferences under the DWI statute. Court held the DWI statutory presumptions depend on blood/breath analysis and do not apply to the firearms statute; rejecting the instruction and limiting the expert was not error.
Whether cumulative error required reversal The People argued no reversible cumulative error. Koper argued errors cumulatively deprived him of a fair trial. Court did not reach cumulative-error argument because it reversed on other grounds and remanded for new trial.

Key Cases Cited

  • People v. Pickering, 276 P.3d 553 (Colo. 2011) (trial court must instruct on self-defense if credible evidence supports it; prosecution then must disprove self-defense beyond a reasonable doubt)
  • People v. Liggett, 135 P.3d 725 (Colo. 2006) (broad prohibition on asking witnesses to comment on the veracity of other witnesses)
  • People v. Speer, 255 P.3d 1115 (Colo. App. 2011) (court must instruct on requested affirmative defenses when any credible evidence supports them)
  • People v. Garcia, 28 P.3d 340 (Colo. 2001) (harmless-error standard for preserved instructional error)
  • Holloman v. State, 51 P.3d 214 (Wyo. 2002) (recognizing transferred-intent self-defense doctrine and collecting authority)
  • Henwood v. People, 129 P. 1010 (Colo. 1913) (dicta approving self-defense instruction where defendant unintentionally shot a bystander while defending against a third person)
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Case Details

Case Name: People v. Koper
Court Name: Colorado Court of Appeals
Date Published: Sep 20, 2018
Citations: 2018 COA 137; 15CA1912
Docket Number: 15CA1912
Court Abbreviation: Colo. Ct. App.
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    People v. Koper, 2018 COA 137