642 S.W.3d 401
Tenn. Crim. App.2021Background
- Victim Nicole Burgess disappeared after last seen at home May 23, 2014; her car, purse, keys, and dogs remained at the residence and she never accessed accounts afterward. Defendant Caleb Cannon was the father of her younger son and was the last person known to be at the house that day.
- Multiple human-remains-detection (HRD) dogs (four in the home, three in a vehicle lineup) independently alerted to the bedroom rug and bathtub drain at the Oak Vale home and to the trunk of the Defendant’s car; no physical human remains were recovered.
- Two jailhouse informants and other witnesses testified that the Defendant admitted killing the victim (struck with brass knuckles, strangled with a cord), placing the body in the bathtub, and later transporting it to a farm and disposing of it. Brass knuckles and a cord were recovered at the scene.
- The trial court admitted expert testimony from the HRD handlers after foundation hearings; the defense challenged training records and methodology and sought exclusion. The jury convicted Cannon of premeditated first-degree murder and imposed a life sentence.
- On appeal Cannon argued (1) improper admission of HRD-dog evidence, (2) insufficient evidence to prove corpus delicti and causation, (3) tainted in-court identification, and (4) erroneous exclusion of certain defense proof. The Court of Criminal Appeals affirmed.
Issues
| Issue | State's Argument | Cannon's Argument | Held |
|---|---|---|---|
| Admissibility of HRD‑dog testimony | HRD alerts are admissible under Daubert/McDaniel when foundation (training, handler, reliability, circumstances, timeliness) is shown; jury may weigh reliability | Alerts lacked scientific corroboration; dogs unreliable and prejudicial; should be excluded | Court applies Barger/Brewer framework adapted to HRD dogs, finds foundation satisfied and admission not an abuse of discretion; no categorical requirement for chemical corroboration |
| Sufficiency / corpus delicti (death & criminal agency) | Circumstantial evidence (alerts, admissions, physical items, behavioral/time gaps) sufficiently proves death and defendant’s criminal agency | No body or forensic confirmation; insufficient to prove death or that Defendant caused it | Evidence (text history, opportunity, admissions to inmates, HRD alerts, physical evidence, eyewitnesss) sufficient to support conviction |
| Alleged taint of in‑court identification (McCavanagh) | Identification resulted from independent observation and media exposure; no suggestive police conduct | Identification was surprise and potentially tainted; court should have held pretrial hearing and allowed impeachment with recorded interview | No state‑arranged suggestive procedure shown; pretrial hearing not required; trial court did not err in admitting ID; failure to pause trial to play tape was not reversible because defense could have recalled witness |
| Exclusion of defense evidence (emails, photograph, impeachment, witness‑favorability) | Trial court properly excluded unauthenticated/hearsay or speculative evidence and limited cross to relevant matters | Exclusions prevented presentation of alternative‑suspect theories and impeachment of witnesses | Court finds exclusions within trial court’s discretion under Rules 401/403 and Flood balancing; no due‑process violation |
Key Cases Cited
- Daubert v. Merrell Dow Pharmaceuticals, 509 U.S. 579 (U.S. 1993) (trial courts must ensure expert testimony is relevant and reliable under Rule 702)
- McDaniel v. CSX Transp., 955 S.W.2d 257 (Tenn. 1997) (factors for assessing reliability of scientific expert evidence in Tennessee)
- Barger v. State, 612 S.W.2d 485 (Tenn. Crim. App. 1980) (foundational five‑step standard for canine scent/trailing evidence)
- Perry v. New Hampshire, 565 U.S. 228 (U.S. 2012) (due process exclusion of identification evidence applies only where law enforcement created unnecessarily suggestive circumstances)
- Trejos v. State, 243 S.W.3d 30 (Tex. Ct. App. 2007) (applying scent‑dog reliability framework to cadaver dogs)