State v. Michelotti, 420 P.3d 1020

On May 11, 2014, Michelotti met Valerio and Gonzales at a residence while holding a handgun and identified himself as a Sureños gang member; Valerio declined to join criminal activity.
Hours later Michelotti went uninvited to Valerio’s parents’ home, again demanded Valerio "put in work," pointed a gun at Valerio and at Dillon (who held an infant), and brought a razor.
A 9-1-1 call was placed; Valerio briefly left the porch, retrieved a shotgun (taken from him by Adan), and tensions escalated on the stairwell. Adan shot Michelotti in the knee; Michelotti fired three rounds down the stairwell.
Police arrested Michelotti; a razor was found on him. Michelotti was charged with aggravated burglary (or alternatively assault with a weapon against Valerio) and four counts of assault with a weapon (against Gonzales, Dillon, Adan, and Carla).
At trial the State introduced evidence of Michelotti’s Sureños affiliation (limited to acts on the day at issue). A witness also stated, once, that Michelotti had an active arrest warrant; defense objected and sought a mistrial. The jury convicted; the court imposed lengthy concurrent sentences for the assaults, consecutive to the aggravated burglary sentence.

Issue	Plaintiff's Argument (State)	Defendant's Argument (Michelotti)	Held
Admission of gang-affiliation evidence	Gang affiliation is part of the transaction and provides context for the defendant's conduct and victims' fear	Evidence is unfairly prejudicial under M. R. Evid. 403 and intended to "plant a seed of fear"	Court affirmed: Transaction Rule permitted limited gang evidence; probative value not substantially outweighed by prejudice
Denial of mistrial after witness mentioned an active warrant	Single, inadvertent reference cured by contemporaneous objection, recess, and curative instruction; less prejudicial than mention of conviction or probation	The statement introduced prior-bad-act evidence and required a mistrial	Court affirmed: curative instruction cured any prejudice; no reasonable possibility statement contributed to conviction
Sufficiency of evidence as to assault of Gonzales (who did not testify)	Circumstantial evidence (gun display, gang statements, presence in house, shots fired down stairwell, victims’ fear) supports a reasonable-apprehension finding	Lack of Gonzales testimony and only speculative testimony about his fear makes evidence insufficient	Court affirmed: a rational juror could find beyond a reasonable doubt that a reasonable person in Gonzales’s position experienced apprehension of serious bodily injury

State v. Long, 113 P.3d 290 (Mont. 2005) (curative instruction can cure a single unsolicited prejudicial statement)
State v. Derbyshire, 201 P.3d 811 (Mont. 2009) (reversal where prosecution repeatedly and apparently deliberately introduced defendant’s probationary status)
State v. Detonancour, 34 P.3d 487 (Mont. 2001) (Transaction Rule permits admission of statements/acts immediately prior and subsequent to charged conduct for context)
State v. Vukasin, 75 P.3d 1284 (Mont. 2003) (criminal convictions may rest on circumstantial evidence; reasonable-apprehension is an objective standard)