G.R. No. 213273. June 27, 2018.
PEOPLE OF THE PHILIPPINES, PLAINTIFF-APPELLEE, V. LEONARDO B. SIEGA, ACCUSED-APPELLANT.

FACTS

Accused-appellant Leonardo Siega was charged with Murder for the killing of Pacenciano Bitoy. The prosecution, through eyewitness Melicio Alingasa, alleged that on October 16, 2005, while Bitoy and Alingasa were walking home, Siega initially confronted them but walked away. As Bitoy and Alingasa continued walking, Siega suddenly turned back, asked Bitoy if he was the “tough guy,” and then stabbed him in the chest. Siega pursued the fleeing victim and continued hacking him even after he fell to the ground. The postmortem examination revealed multiple fatal hack and stab wounds.
Siega interposed the justifying circumstance of self-defense, claiming Bitoy rushed towards him while shouting threats and attempting to draw a bolo from his waist. Fearing for his life, Siega claimed he grabbed his own bolo and hacked Bitoy first. The defense presented Emiliano Gildore, who corroborated Siega’s claim of unlawful aggression by Bitoy. The Regional Trial Court convicted Siega of Murder, a ruling affirmed by the Court of Appeals.

ISSUE

Whether the Court of Appeals correctly affirmed Siega’s conviction for Murder, rejecting his claim of self-defense.

RULING

The Supreme Court affirmed the conviction. The legal logic rests on the fundamental principle that one who invokes self-defense admits to the killing and assumes the burden of proving by clear and convincing evidence the concurrence of its essential elements: unlawful aggression, reasonable necessity of the means employed, and lack of sufficient provocation. The Court found that Siega failed to prove the primordial element of unlawful aggression.
The testimony of defense witness Gildore was deemed unreliable, as he admitted on cross-examination that he was asked by Siega’s uncle to testify, casting doubt on his impartiality. His testimony was also inconsistent and required leading questions. In contrast, the testimony of prosecution eyewitness Alingasa was found credible, straightforward, and consistent with the physical evidence. Crucially, no weapon was recovered from the victim or the crime scene, directly contradicting the claim that Bitoy was armed and the aggressor. The number, severity, and location of the wounds—including hack wounds to the face and deep stab wounds to the chest inflicted on a fallen victim—were grossly disproportionate to any purported threat and indicated a determined attack, not a reasonable defensive act. These facts established the qualifying circumstance of treachery, as the attack was sudden and unexpected, denying the unarmed victim any chance to defend himself. Consequently, the crime was properly classified as Murder.