Background
Turner was convicted in 1995 of first-degree murder and kidnapping based primarily on testimony from his jail cellmate, C.D., who claimed Turner had confessed to shooting a victim multiple times in a field. Turner’s defense emphasized the absence of physical evidence or eyewitness testimony linking him to the crimes and highlighted C.D.’s motive to fabricate the confession. The jury convicted Turner, and his convictions were affirmed on direct appeal in 1998.
In 2003, Turner petitioned for post-conviction DNA testing. After a seventeen-year delay, the trial court in 2020 granted testing of bloodstains from Turner’s vehicle, the victim’s clothing, and other evidence. The DNA results showed Turner’s DNA was excluded from the vast majority of the victim’s clothing samples and the victim’s DNA was absent from samples taken from Turner’s vehicle.
The Court’s Holding
The Arizona Court of Appeals granted review but denied Turner’s petition for post-conviction relief. The court found that the DNA results—showing Turner’s exclusion from most clothing samples and the victim’s exclusion from vehicle samples—would not have changed the jury’s verdict. The trial evidence established only limited physical contact between Turner and victim. Testimony indicated Turner may have slapped the victim or moved her body, but nothing suggested he touched the specific areas of clothing where DNA was sampled or that sexual contact occurred.
The court also rejected Turner’s claim that the DNA evidence would have significantly undermined the cellmate’s credibility. The inconsistencies in the cellmate’s account were already apparent from other trial evidence, and the defense had already emphasized these discrepancies to the jury. Additionally, the court upheld trial counsel’s decision not to seek independent DNA testing before trial as reasonable strategy, noting that such testing risked generating inculpatory evidence.
Key Takeaways
- DNA exclusions do not automatically warrant post-conviction relief; courts evaluate whether such evidence would reasonably have changed the verdict based on specific factual circumstances.
- When expected physical contact between defendant and victim is limited, the absence of DNA matching that contact pattern is unlikely to be deemed exculpatory.
- Credibility attacks on witness testimony already known to the jury and already emphasized by defense counsel are unlikely to significantly impact post-conviction relief decisions.
- Defense counsel’s strategic decision to avoid pre-trial DNA testing to prevent potentially inculpatory evidence constitutes reasonable trial strategy under ineffective assistance standards.
Why It Matters
This decision establishes a critical limitation on post-conviction DNA relief claims: while DNA evidence can be powerful, its exculpatory value depends on whether the absence of such evidence meaningfully undermines the case against the defendant. Courts will not grant relief based on DNA exclusions when those exclusions align with the expected pattern of physical contact. The decision reinforces that post-conviction DNA testing is not automatically successful even when exclusions occur, and that the strength of the underlying trial evidence remains dispositive.
For practitioners, the decision clarifies that defense counsel’s pre-trial strategic decisions—including the choice not to pursue DNA testing—are evaluated for reasonableness rather than judged with the benefit of hindsight. This has implications for how courts assess ineffective assistance claims in cases where testing was available but not undertaken.