Title
Nadyahan vs. People
Case
G.R. No. 193134
Decision Date
Mar 2, 2016
Rafael Nadyahan, charged with homicide, claimed self-defense after stabbing Mark Pagaddut during a confrontation. The court ruled incomplete self-defense, citing disproportionate force, and modified the penalty due to mitigating circumstances.
homicide
conviction
modified penalty
A

Case Summary (G.R. No. 193134)

Petitioner and Respondent

Petitioner: Rafael Nadyahan, accused of homicide. Respondent: People of the Philippines, represented in the Supreme Court by the Office of the Solicitor General (OSG).

Key Dates

Incident: evening of May 26, 2004. Information filed: July 2, 2004. RTC judgment: February 5, 2008. Court of Appeals decision: December 17, 2009. Supreme Court resolution: March 2, 2016. Applicable constitutional framework: 1987 Philippine Constitution (decision rendered after 1990).

Applicable Law

Primary substantive provisions: Revised Penal Code, Article 249 (homicide). Privileged mitigating circumstance of incomplete self-defense: Article 69, RPC. Ordinary mitigating circumstance invoked: voluntary surrender (Article 64(2), RPC). Sentencing regime: Indeterminate Sentence Law. Burden and elements for asserting self-defense follow prevailing jurisprudence (e.g., People v. Tabuelog).

Charge and Information

Petitioner was charged by information with homicide for allegedly attacking and stabbing the victim with a knife on May 26, 2004 in Banaue, Ifugao, resulting in the victim’s death. Petitioner pleaded not guilty and invoked self-defense; the defense and prosecution agreed to a reverse trial with the defense presenting evidence first.

Defense Case and Evidence

Petitioner testified that he and a passenger (Apilis) were stopped by Acangan and his companions who asked for a ride and later requested drinks; petitioner refused. A physical altercation allegedly began when Acangan slapped petitioner and others picked up pieces of wood; petitioner was struck on the back by Nabejet. Petitioner claimed he took a knife impulsively, fled toward his house while being pursued, was struck in the head, and, while losing consciousness and amid continued chasing, stabbed Pagaddut before both fell. Petitioner then left the scene, sought medical treatment in Nueva Ecija, and ultimately surrendered. Pedro Binwag corroborated seeing a person with a knife being chased, cornered, struck on the head, and then knocked down; Pedro left the area without witnessing the entire exchange.

Prosecution Case and Evidence

Prosecution witnesses Acangan and Nabejet presented a contrasting narrative portraying petitioner as the initial aggressor. Acangan testified that petitioner suddenly produced a knife near the tricycle where Pagaddut sat, chased Acangan, and later kicked and stabbed Pagaddut; Acangan claimed to have seen the “last pull of the knife” and brought Pagaddut to the hospital, where the victim later died. Nabejet testified that he saw petitioner armed and stabbing Pagaddut and that he attempted to hit petitioner with a piece of wood but missed. The prosecution emphasized petitioner’s active, aggressive conduct leading to fatal wounds.

Medical Evidence

The Certificate of Death and Dr. Antonio Ligot’s testimony identified multiple stab wounds. The death certificate listed several penetrating and perforating stab wounds (right infraclavicular, right anterior axillary fold, base of the neck, and lateral upper arm). Dr. Ligot specifically testified to three wounds: a penetrating perforating wound to the right anterior chest wall, a penetrating perforating stab at the base of the right side of the neck, and a stab wound to the right upper arm.

Trial Court Findings

The trial court credited petitioner’s testimony over the prosecution’s witnesses and concluded petitioner was not the initial aggressor. Nevertheless, the court found incomplete self-defense because the means employed (knife thrusts to vital areas) were disproportionate to the attack and therefore not reasonably necessary to repel the aggression. The court also accepted voluntary surrender as an ordinary mitigating circumstance. The trial court convicted petitioner of homicide and, applying Article 69 and the Indeterminate Sentence Law, sentenced him to prision correccional (medium) as minimum to prision mayor (minimum) as maximum, and ordered P50,000 civil indemnity to the victim’s heirs.

Issues on Appeal

Petitioner contended the trial court erred in finding only incomplete self-defense (arguing justification or full self-defense should apply) and in sustaining the penalty without adequately considering mitigating circumstances. The OSG defended the incomplete self-defense finding but recommended a modification of penalty to a lesser range (arresto mayor medium to prision correccional minimum).

Legal Standard on Self-Defense

Under established law, once self-defense is pleaded, the burden shifts to the accused to prove by clear and convincing evidence the three elements of the justifying circumstance: (a) unlawful aggression by the victim; (b) reasonable necessity of the means employed to prevent or repel the attack; and (c) absence of sufficient provocation by the defender. Courts examine credibility, physical evidence, and the proportionality between means of attack and defense.

Court’s Analysis on Unlawful Aggression and Provocation

The Supreme Court agreed with the trial court’s credibility determinations that supported unlawful aggression by the victim’s group and absence of sufficient provocation by petitioner. The trial court’s assessment relied on inconsistencies in prosecution witnesses’ testimony, absence of detailed contemporaneous accounts in affidavits, the failure of prosecution witnesses to observe the critical exchange of blows despite proximity, and medical testimony indicating frontal rather than lower-back wounds. These credibility findings supported acceptance of petitioner’s account that he was not the initial aggressor and that his refusal to buy drinks did not constitute sufficient provocation to justify the attack upon him.

Court’s Analysis on Reasonable Necessity of Means Employed

Despite finding unlawful aggression and lack of provocation, the Supreme Court affirmed that petitioner failed to establish the reasonable necessity of the means he used. The Court identified several factors negating reasonable necessity: (1) intrinsic disproportionality between a knife and

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