Criminal Law

State v. McKoy — Study Notes

State v. McKoy, 494 U.S. 433 (1990)

Study notes for State v. McKoy: professor notes, cold call prep, exam angles, and memory aids.

A jury instruction requiring unanimity for considering mitigating circumstances in a capital case violates the Eighth Amendment.
Professor Notes

In State v. McKoy, the Supreme Court addressed the crucial issue of jury instructions in capital sentencing. The Court found that a requirement for jurors to unanimously agree on the existence of mitigating circumstances significantly hampered individual juror discretion, leading to an inability to fully consider the moral weight of mitigating evidence. Professors may emphasize how this ruling aligns with broader Eighth Amendment protections against cruel and unusual punishments, highlighting the sanctity of personal judgment in the jury process.

Additionally, it's noteworthy how the Court's decision reflects a shift towards greater protections for defendants in capital cases. The unanimous instruction can drown out dissenting views among jurors, leading to a potentially skewed outcome in capital punishment contexts. Understanding this case allows students to forge connections with trends in Eighth Amendment jurisprudence, particularly concerning the increasing emphasis on the individual juror's role in the sentencing phase of capital trials.

Cold Call Prep
  1. 1What was the specific jury instruction at issue in McKoy?
  2. 2How did the majority reason that the unanimity requirement violated the Eighth Amendment?
  3. 3Can you explain the impact of this case on future jury instructions in capital cases?
  4. 4What were the dissenting opinions in this case, if any?
  5. 5How does McKoy compare with other landmark cases concerning capital punishment?
  6. 6What are the implications of McKoy for individual juror discretion in capital cases?
  7. 7Discuss the relationship between McKoy and a defendant's constitutional rights.
Mnemonic Device

M for McKoy, M for Mitigating factors must be considered by all.

Distinguish From
CaseDistinction
Godfrey v. GeorgiaGodfrey involved the vagueness of aggravating circumstances, while McKoy focused on the requirement of unanimity for mitigating circumstances.
Lockett v. OhioLockett ruled that states must allow consideration of all mitigating evidence, whereas McKoy specifically addressed the unanimity instruction issue.
Policy Arguments

For the Rule

The unanimous requirement in jury instructions preserves a collective decision-making process that reflects societal values on capital punishment.

Against the Rule

Requiring unanimity can prevent jurors from fully weighing and considering all relevant mitigating evidence, potentially leading to unjust outcomes.

Class Discussion Points
  • The role of mitigating factors in the sentencing phase of a capital trial.
  • The implications of the Eighth Amendment on jury instructions and capital punishment.
  • How different jurors’ perspectives might impact the decision-making process in capital cases.
  • Comparison of McKoy with other significant rulings on capital sentencing.
  • The balance between state interests in capital punishment and individual rights of defendants.
Exam Angle

This case often appears in exams focusing on Eighth Amendment rights and jury instructions in capital cases, highlighting the balance between collective decision-making and individual judgment.

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