Strong v. State

Aaron Strong stabbed his wife's son Maurice and grandson Deandre during a family argument at their Cobb County home, killing Maurice and wounding Deandre. Strong claimed self-defense, saying the two men attacked him together. At trial, prosecutors introduced extensive evidence of nine other violent incidents Strong allegedly committed over 40 years, including hitting a former partner with a crowbar, shooting a stranger, breaking his ex-wife's neck, and beating an employee, none of which had led to any criminal charges against him. Strong appealed, arguing the trial court should never have let jurors hear about these unrelated incidents. The Supreme Court of Georgia agreed, finding the evidence was not properly relevant to his intent, motive, or the self-defense claim, and that its prejudicial effect outweighed any legitimate value. Because the error likely affected the jury's verdict, the court reversed Strong's convictions, though the State may retry him.

The court held that evidence of Strong's nine prior uncharged violent acts was not properly admissible under Rule 404(b) to show intent, motive, or to disprove mistake or self-defense, nor was it admissible as character evidence under Rule 404(a), because it was minimally relevant and its prejudicial impact was severe, so its admission was reversible error.

The ruling reinforces limits on Georgia prosecutors' use of a defendant's uncharged past violent conduct, especially in self-defense cases, and signals that stacking multiple unrelated 'other acts' can taint a trial even with limiting instructions, affecting how future criminal trials are conducted statewide.

Reversed

1. The court explained that other-acts evidence under Georgia's Rule 404(b), a law generally barring evidence of a person's past wrongs to prove they acted the same way again, may be admitted only if it is relevant to a non-character purpose, its value isn't outweighed by unfair prejudice, and there's enough proof the act happened.
2. Because Strong's only defense was self-defense, not mistake or accident, the State had little need to use the other acts to prove intent or disprove mistake, since the real dispute was simply whether his violent act was legally justified.
3. The other incidents differed greatly from the charged stabbings in weapon, victim type, and circumstances, and most occurred years or decades earlier, so they had little value in showing a similar intent or motive under the required Rule 403 balancing test, which weighs probative value against unfair prejudice.
4. The court found the prosecution's 'motive to control others' theory was really just an improper argument that Strong had a violent character, which the rules specifically forbid using to suggest guilt.
5. The court also rejected the argument that the evidence was admissible as character evidence under Rule 404(a) because Georgia law generally requires character to be proven through reputation or opinion testimony, not detailed accounts of specific past acts, except in narrow situations not present here.
6. Weighing the case despite a jury instruction limiting the evidence's use, the court concluded the sheer volume, severity, and lack of any punishment for the prior acts made it highly likely the evidence swayed the jury, especially since jurors asked about Strong's criminal record during deliberations, so the error was not harmless.

• felony murder conviction
• other acts evidence
• self-defense claim
• Rule 404(b)
• Cobb County stabbing