34 F.4th 1142
10th Cir.2022Background
- Kansas troopers stopped two rental cars traveling together on I-70; officers found ~2 kg fentanyl and ~4 kg heroin in suitcases in the Toyota; Starks was driving the Chevy behind it.
- Phones recovered from both cars showed intercontact; one number was attributable to Starks; syringes and packaging materials were found in the Chevy.
- Co-defendant Toya Avery pleaded guilty and testified for the government that she and Kevin Scott trafficked drugs and that Starks acted as a supplier/escort on prior trips; she denied knowing about the specific drugs in the Toyota at the time of the stop.
- The district court gave most jury instructions (including presumption of innocence and reasonable-doubt instructions) at the start of trial, not again at the close of evidence; jury deliberations began ~2 days after those oral instructions.
- In closing, the prosecutor told jurors the presumption of innocence “no longer” applied after the evidence; the prosecutor also vouched for Avery’s truthfulness and emphasized troopers’ expert-style testimony about trafficking patterns. Starks was convicted on two possession-with-intent counts; he appealed.
- The Tenth Circuit reversed, holding cumulative errors (prosecutorial presumption-of-innocence statement, admitted expert testimony by troopers, and prosecutorial vouching) undermined the fairness of the trial and warranted reversal and remand to vacate the convictions.
Issues
| Issue | Starks’ Argument | Government’s Argument | Held |
|---|---|---|---|
| Prosecutor's closing that presumption of innocence “no longer” applied | Statement violated constitutional presumption of innocence; plain error requiring reversal | Error was clear but harmless; jury instructions and presumption that jurors follow instructions cure any prejudice | Court: statement was clear/obvious error and had prejudicial effects; when cumulated with other errors, warranted reversal |
| Admission of troopers’ testimony about drug-trafficking patterns (Rule 702/Crim. R. 16) | Troopers offered expert opinions without proper disclosure/qualification; admission was abuse of discretion | Troopers could have been qualified as experts; any error harmless in isolation | Court: admission was an abuse of discretion (preserved error); had prejudicial effect on central issue of Starks’ knowledge/possession |
| Prosecutorial vouching for Avery’s credibility | Prosecutor improperly vouched (personal assurance and implication of outside information); plain error | Trial court sustained objection and instructed jury to disregard; error harmless alone | Court: conceded clear error; curative instruction was insufficient to erase prejudicial effect when combined with other errors |
| Cumulative-error / plain-error review | Combined effect of the above errors undermined confidence in outcome and violated substantial rights | Preserved error harmless; unpreserved errors alone insufficient to satisfy plain-error prong | Court: cumulative prejudicial effects satisfied plain-error prongs and undermined trial fairness; convictions reversed and remanded |
Key Cases Cited
- Mahorney v. Wallman, 917 F.2d 469 (10th Cir. 1990) (prosecutor’s statements that presumption of innocence was extinguished were impermissible and prejudicial)
- United States v. Young, 470 U.S. 1 (1985) (limits on prosecutorial argument and dangers of vouching)
- Estelle v. Williams, 425 U.S. 501 (1976) (presumption of innocence is a basic component of a fair trial)
- In re Winship, 397 U.S. 358 (1970) (constitutional importance of proof beyond a reasonable doubt and presumption of innocence)