464 P.3d 1184
Utah Ct. App.2020Background
- On March 13, 2015, a party hosted by Santana Percival erupted into a brawl; Percival was the only person seen wielding a knife.
- Four people were stabbed: Nicholas suffered life‑threatening chest wounds (survived with permanent cognitive impairment); Adriana, Danielle, and Marco sustained stab wounds of varying severity.
- Police found stab wounds on the victims and blood on Percival; Percival had injuries to his right hand consistent with using a knife.
- The State charged Percival with attempted murder (or, alternatively, aggravated assault resulting in serious bodily injury) as Count One (Nicholas) and one count of aggravated assault (third‑degree) as Count Two (allegedly against Adriana OR Danielle OR Marco).
- At trial the State introduced gang‑related evidence and a gang expert over defense objections; Instruction 33 used an OR formulation for Count Two’s victim and no special verdict form was requested by defense counsel.
- The jury convicted on both aggravated‑assault counts; Percival appealed claiming (1) ineffective assistance for failing to seek a special verdict to secure jury unanimity on Count Two and (2) erroneous admission of gang evidence. The court affirmed, finding no prejudice.
Issues
| Issue | Percival's Argument | State's Argument | Held |
|---|---|---|---|
| Whether counsel was ineffective for failing to request a special verdict to ensure jury unanimity on the Count Two victim | Counsel’s failure created a unanimity defect; a special verdict likely would have produced a more favorable outcome | No reasonable likelihood of different result—overwhelming evidence Percival alone stabbed the victims | Court assumed deficient performance but found no Strickland prejudice; affirmed |
| Whether the court abused its discretion by admitting gang evidence | Admission of extensive gang evidence was unnecessary and unduly prejudicial, creating impermissible propensity inference | Some gang evidence was proper to explain motive/identification; additional material was cumulative and unlikely to increase prejudice | No abuse of discretion shown; even if some evidence was cumulative, no prejudice given strong guilt evidence and limiting instructions; affirmed |
Key Cases Cited
- Strickland v. Washington, 466 U.S. 668 (1984) (establishes two‑part ineffective assistance test and prejudice standard)
- State v. Hummel, 393 P.3d 314 (Utah 2017) (jury unanimity required as to each element and count)
- State v. Saunders, 992 P.2d 951 (Utah 1999) (unanimity problem when jurors convict based on different acts)
- State v. Gonzalez, 345 P.3d 1168 (Utah 2015) (gang evidence may be admissible for motive/identification despite prejudice)
- State v. High, 282 P.3d 1046 (Utah Ct. App. 2012) (cumulative gang evidence beyond properly admitted material unlikely to significantly increase prejudice)