BOSSE v. STATE
2015 OK CR 14
Okla. Crim. App.2015Background
- Shaun Michael Bosse was convicted by jury of three counts of first-degree murder (Katrina Griffin and her two children) and one count of first-degree arson; jury found multiple statutory aggravators and recommended death for each murder; sentences affirmed by the Oklahoma Court of Criminal Appeals.
- Victims were stabbed (Katrina and Christian) and Chasity died of smoke inhalation/thermal injury after being locked in a closet; fire was incendiary and began in a living-room loveseat.
- Investigators linked Bosse to the victims by pawn tickets, pawned property bearing the victim’s initials, fingerprints, and DNA on clothing/shoes; Bosse had abrasions and blood on clothing after the killings and pawned many of Katrina’s items the morning after the fire.
- Pretrial Daubert hearing addressed BATF expert experiments reconstructing the fire timeline; experiments (replica trailer burns) were admitted and used to support that the fire could smolder for hours before flaming when oxygen was introduced.
- Major contested legal issues on appeal included admissibility of experimental/scientific evidence, whether prosecutors could use Bosse’s initial refusal to consent to a truck search as substantive evidence of guilt, admission of gruesome and pre‑mortem photographs, and whether medical‑examiner testimony was barred by the Medical Examiner office’s lack of accreditation.
Issues
| Issue | Plaintiff's Argument (State) | Defendant's Argument (Bosse) | Held |
|---|---|---|---|
| Admissibility of BATF fire‑testing under Daubert/Kumho | Tests reliably recreated key conditions and assisted the jury on timeline and victim incapacitation | Experiments were too dissimilar (drywall/windows, roof, furniture) and therefore irrelevant and prejudicial | Tests were sufficiently similar; admission within trial court's gatekeeper discretion — evidence admissible; differences go to weight not admissibility |
| Use of refusal to consent to search as substantive evidence | Refusal was probative of consciousness of guilt and relevant to chain of events; photos and later consent/search were admissible | Admission and prosecutor argument impermissibly penalized Bosse for exercising Fourth Amendment right; such use violates due process (analogous to Griffin) | Court assumed, without deciding, that using refusal as substantive evidence may be unconstitutional, but any error here was harmless beyond a reasonable doubt given overwhelming admissible evidence |
| Admission of gruesome photographs (Chasity) | Photographs were relevant to show scene, corroborate autopsy, and consequences of setting fire | Two pretrial‑objected photos of Chasity were profoundly disturbing and unfairly prejudicial | Trial court abused discretion admitting two particularly graphic Chasity photos, but error was harmless beyond a reasonable doubt; convictions and sentences stand |
| Medical Examiner testimony despite office lacking accreditation | Testimony about autopsies, cause and manner of death was relevant and statutorily authorized under Title 63; accreditation affects weight not admissibility | Forensic Laboratory Accreditation Act requires accredited labs for forensic testimony; ME office unaccredited so testimony inadmissible | Court held ME testimony admissible; Title 63 duties govern autopsy testimony and lack of accreditation impacts weight, not admissibility; no plain error |
Key Cases Cited
- Daubert v. Merrell Dow Pharm., 509 U.S. 579 (expert‑evidence gatekeeping standard)
- Kumho Tire Co. v. Carmichael, 526 U.S. 137 (Daubert principles apply to technical/engineering testimony)
- Griffin v. California, 380 U.S. 609 (prosecutorial comment on defendant’s silence forbidden)
- Salinas v. Texas, 133 S. Ct. 2174 (plurality on noncustodial silence and invocation of Fifth Amendment)
- United States v. Dozal, 173 F.3d 787 (10th Cir.) (refusal to consent may be admissible for proper purpose but not to infer guilt)
- United States v. Prescott, 581 F.2d 1343 (9th Cir.) (extended Griffin reasoning to Fourth Amendment refusal to consent)