The Court of Appeals for the Armed Forces has upheld the guilty verdict against Corporal Jonatan O. RosarioMartinez, who was convicted of sexual assault. The ruling, issued on June 2, 2026, stems from a court-martial that found RosarioMartinez guilty of one specification of sexual assault while acquitting him of another. This decision is significant as it clarifies legal standards around jury instructions and voting procedures in military courts.
The case began when the government charged RosarioMartinez with two specifications of sexual assault under Article 120 of the Uniform Code of Military Justice (UCMJ). The allegations arose after a victim reported that RosarioMartinez assaulted her in a barracks room following a night of drinking. After a general court-martial, an eight-member panel acquitted him of the first specification but found him guilty of the second, which involved performing a sexual act without the victim's consent.
Following the trial, significant concerns emerged regarding the panel's understanding of the voting process. During a post-trial meeting, the senior panel member, Captain Sierra, revealed that the jury had misunderstood the instructions regarding the number of votes required to convict or acquit. This misunderstanding led to an affidavit from Captain Sierra, stating that if the panel had properly understood the voting rules, they would have recorded a not guilty finding for both specifications.
RosarioMartinez's defense team filed a motion for appropriate relief, requesting the military judge to correct the findings based on Captain Sierra's affidavit. However, the military judge declined to consider the affidavit, stating it did not qualify as competent evidence under Military Rule of Evidence (M.R.E.) 606(b)(2)(C), which allows testimony regarding mistakes in entering findings. The judge maintained that the affidavit pertained to the deliberative process and was therefore inadmissible.
On appeal, the Court of Appeals for the Armed Forces was tasked with determining whether the military judge erred in denying the motion based on the affidavit. The court ruled that the military judge did not abuse his discretion in finding the affidavit incompetent. Judge Hardy, writing for the court, stated, "We hold that the military judge did not abuse his discretion when he declined to consider Capt Sierra’s affidavit after finding that it was not competent evidence." The ruling affirmed the findings and sentence as upheld by the Navy-Marine Corps Court of Criminal Appeals (NMCCA).
This ruling has important implications for military justice, particularly regarding how jury instructions are understood and applied. The case underscores the need for clarity in jury instructions and the potential consequences of misunderstandings in the voting process. It highlights that while military courts have unique procedures, they must also adhere to principles that ensure fair trials.
Looking ahead, the ruling in RosarioMartinez does not appear to set a new precedent but reinforces existing standards regarding the admissibility of evidence related to jury deliberations. The military justice system continues to grapple with the complexities of nonunanimous verdicts and the implications of jury misunderstandings.
As for next steps, it is unclear if RosarioMartinez will seek further appeal options following the Court of Appeals for the Armed Forces' ruling. There are currently no related cases pending that address similar issues. The outcome of this case may influence future discussions about jury instructions and the handling of jury misunderstandings in military courts.