Clayton v. State

Summary

The Supreme Court of Missouri affirmed the denial of Cecil Clayton's Rule 29.15 motion for post-conviction relief following his capital murder conviction and death sentence. The court rejected claims of ineffective assistance of counsel concerning the use of multiple defenses, investigation and presentation of diminished-capacity evidence, competency proceedings, and penalty-phase mitigating witnesses.

Holdings

1. Presenting both a reasonable-doubt defense and a diminished-capacity defense is not per se unreasonable or legally inconsistent. Under the circumstances, counsel's decision to present both defenses was a reasonable strategic choice and did not constitute ineffective assistance.
2. Counsel was not ineffective for choosing one reasonable trial strategy over another, declining to introduce potentially confusing or damaging records, or failing to call witnesses who were unwilling, cumulative, or potentially harmful to the defense.
3. Counsel was not ineffective for failing to investigate or seek a competency adjudication where the client appeared able to consult rationally with counsel and understand the proceedings. Clayton also failed to prove that he was actually incompetent during trial.
4. Counsel was not ineffective for failing to call five additional mitigating witnesses where their testimony would have been largely cumulative, was not required as background evidence, or could have undermined the brain-injury mitigation theory.

Questions Presented

1. Whether trial counsel was ineffective for presenting both a reasonable-doubt defense and a diminished-capacity defense.
2. Whether trial counsel was ineffective for failing to investigate and present additional evidence and witnesses supporting diminished capacity.
3. Whether trial counsel was ineffective for failing to seek a competency adjudication and whether Clayton was incompetent during trial.
4. Whether trial counsel was ineffective for failing to present particular mitigating witnesses during the penalty phase.

Disposition

affirmed