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KLAN202100949
Tribunal De Apelaciones De Pue...
Feb 28, 2023
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Background:

  • Marcos Núñez González was tried by jury for murder (Art. 93 CP), related homicide offenses (Arts. 249a, 280 CP) and multiple firearms offenses under the repealed Ley de Armas; trial evidence included scene reports, forensic reports, ballistic evidence, witness testimony and photos/videos.
  • Trial occurred Aug–Oct 2021; jury convicted Núñez on all counts on October 1, 2021; sentencing on Oct 25, 2021 produced a total effective sentence of 169 years (concurrent among Penal Code counts; consecutive for weapons counts).
  • Núñez appealed, raising multiple errors: insufficiency/credibility of evidence (chiefly reliance on witness Yadier Díaz), acceptance of concert/ common agreement, alleged unlawful detention >36 hours (72 hours claimed) and attendant suppression/fruit-of-the-poisonous-tree issues, hearsay/confrontation problems (agent testimony recounting statements of José Rivera López), limits on cross-examination (Yadier Díaz), and omission of a Rule 156 coactor/cooperator jury instruction.
  • On review, the appellate panel emphasized deference to the jury’s credibility determinations absent passion, prejudice, or manifest error, and analyzed contested evidentiary and procedural claims (detention period, confrontation/hearsay, relevance limits, and waiver of jury-instruction requests).
  • Court affirmed the conviction and sentence: it found the jury properly credited testimony, found no reversible error in admission of contested testimony, determined the detention-excess did not taint the admitted evidence (no causal link shown and exceptions to exclusion applied), and held the Rule 156 instruction claim was waived by failure to timely request it.

Issues:

Issue Plaintiff's Argument Defendant's Argument Held
Sufficiency/credibility of evidence (presumption of innocence) Núñez: evidence was contradictory, insufficient, and principal witness (Díaz) lacked credibility; verdict not beyond reasonable doubt State: jury observed witnesses and credited testimony; one credible witness can sustain conviction Court: defer to jury’s credibility findings absent passion/prejudice or manifest error; conviction affirmed
Acceptance of concert/common agreement Núñez: court accepted conspiracy allegation without integral analysis of proof State: evidence supported concert and jury's factual finding Court: no error in jury’s assessment; deference to factfinder upheld
Alleged unlawful detention >36 hours / fruit of poisonous tree Núñez: detained ~72 hours; State used detention time to investigate, so evidence is tainted and should be suppressed State: although detention exceeded 36 hours, appellant didn’t move to suppress and no causal link shown between detention and evidence; attenuation/independent source applies Court: although delay exceeded 36 hours, appellant failed to show nexus to evidence; exclusion not warranted; no relief granted
Hearsay / Confrontation (agent relaying José Rivera López statements) Núñez: agent’s testimony reciting José’s statements violated confrontation because defense lacked earlier opportunity to cross-examine State: José Rivera López testified at trial and was cross-examined Court: no confrontation violation; statements were presented through declarant at trial and were subject to cross-examination
Cross-examination limits re: Yadier Díaz’s "sumariado" status Núñez: prevented from probing Díaz’s status which bore on credibility State: court limited questions under relevance (Rules 401/402) Court: limiting questions for relevance was permissible; no reversible error
Omission of Rule 156 coactor/cooperator jury instruction Núñez: jury should have been instructed to view coactor testimony with caution State: defense did not timely request or object to instructions per Rule 137 (waiver) Court: claim waived for failure to request instruction; no reversible error

Key Cases Cited

  • Pueblo v. Rodríguez Pagán, 182 DPR 239 (2011) (presumption of innocence / due process principles)
  • Pueblo v. Acevedo Estrada, 150 DPR 84 (2000) (burden to prove guilt beyond reasonable doubt; deference to factfinder)
  • Dávila Nieves v. Meléndez Marín, 187 DPR 750 (2013) (defines passion, prejudice, partiality and manifest error standards for appellate review)
  • Pueblo v. Aponte Nolasco, 167 DPR 578 (2006) (36‑hour guideline for presenting arrestee to magistrate; presumption of unreasonableness for delays)
  • Silverthorne Lumber Co. v. United States, 251 U.S. 385 (1920) (origin of the fruit‑of‑the‑poisonous‑tree exclusionary principle)
  • Crawford v. Washington, 541 U.S. 36 (2004) (Confrontation Clause prohibits testimonial hearsay unless declarant testifies and is available for cross‑examination)
  • Pueblo v. Toro Martínez, 200 DPR 834 (2018) (appellate courts must defer to credibility determinations of trial factfinders)
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Case Details

Case Name: El Pueblo De Puerto Rico v. Nuñez Gonzalez, Marcos
Court Name: Tribunal De Apelaciones De Puerto Rico/Court of Appeals of Puerto Rico
Date Published: Feb 28, 2023
Citation: KLAN202100949
Docket Number: KLAN202100949
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    El Pueblo De Puerto Rico v. Nuñez Gonzalez, Marcos, KLAN202100949