Tumentsereg v. People, 247 P.3d 1015

Tumentsereg was convicted of class-two-felony sexual assault, conspiracy, felony menacing, and third-degree assault arising from a January 2001 incident.
Jury found defendant aided or abetted the sexual assault, and the verdict form used a single interrogatory to distinguish class-two from class-three/four sexual assaults.
Interrogatory omitted the word physically from the phrase 'physically aided or abetted,' a key element for class-two elevation.
Trial and appellate courts treated the omission as unobjected-to trial error, not plain error, and affirmed the sixteen-years-to-life sentence.
The trial court sentenced defendant to sixteen years to life, based on complex and overlapping sentencing provisions under post-1998 sexual assault statutes and Lifetime Supervision Act.
The majority concluded the omission was not plain error and affirmed, while a dissent argued it was plain error requiring reversal and remand.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Does omitting 'physically' from the aiding/abetting interrogatory amount to plain error?	Tumentsereg	Tumentsereg	No plain error; not reversible
Did the trial court abuse discretion in sentencing under competing statutory schemes?	No abuse; within permissible range	Court misread governing statute; could have imposed lesser sentence	No abuse; sentence affirmed

Neder v. United States, 527 U.S. 1 (Supreme Court 1999) (structural error not automatically required to reverse; plain error analysis applicable)
Lehnert v. People, 244 P.3d 1180 (Colo.2010) (unobjected-to verdict-form error analyzed as trial error with plain-error standard)
Medina v. People, 163 P.3d 1136 (Colo.2007) (structural vs non-structural error in classification of accessory; relied on in reasoning)
Washington v. Recuenco, 548 U.S. 212 (Supreme Court 2006) (omitted sentencing factors can be analyzed under plain-error framework)
Adair v. People, 651 P.2d 389 (Colo.1982) (discretionary sentencing principles; no automatic constraint shown)