People of the Philippines vs. Melvin Perreira y Montalvo

An accused who invokes self-defense bears the burden of proving its elements clearly and convincingly, and the defense fails if unlawful aggression on the part of the victim is not established. The Court also held that treachery qualifies a killing to Murder when the attack is deliberate and without warning, affording the unsuspecting victim no chance to resist or escape, and that voluntary surrender requires that the offender surrender himself voluntarily to a person in authority or his agent before arrest.

The accused-appellant Melvin Pereira y Montalvo and the victim Arnel Bagan y Simplina were neighbors in Sto. Cristo Street, Balintawak, Quezon City, their houses being only five meters apart. The accused's mother, Leonila Pereira, testified to a prior incident on the day of the killing wherein the victim's wife, Virgie Bagan, allegedly hit her with a coffee mug, which incident prompted the accused to confront the Bagans. The case was prosecuted under the Revised Penal Code, with the Information charging Murder qualified by treachery and attended by the aggravating circumstances of evident premeditation and dwelling.

On the evening of January 18, 2009, Arnel Bagan y Simplina was watching television in his home together with his wife Virgie, their ten-year-old daughter, and their neighbor Rhea Masalunga. Melvin Pereira y Montalvo surreptitiously entered the house through the unlocked screen door, positioned himself behind Bagan, wrapped his left arm around Bagan's neck, and stabbed him with a knife in the chest. Perreira then aimed towards Virgie, who parried the attack with a chair. Alerted by the commotion, Carlo Delgado entered the Bagans' house and was likewise stabbed by Perreira, who thereafter fled the scene. Bagan was brought to the Quezon City General Hospital where he was pronounced dead on arrival. The barangay authorities of Brgy. Balingasa eventually arrested Perreira at the house of his aunt, Dorothea Macaraeg, and turned him over to the police for inquest proceedings.

Police Chief Inspector Paul Ed Ortiz, the Medico-Legal Officer of the PNP Crime Laboratory who conducted the autopsy, testified that Bagan died of stab wounds in the thorax. There were three stab wounds: one was 12 cm deep, caused by a sharp object such as a knife, which perforated the heart and penetrated the upper part of the left lung, sufficient to cause death; another was located just below the ribcage in the upper right abdominal part, 7 cm deep, the thrust being from front to back and upward, penetrating the heart at the level of the 7th rib; the last stab wound was at the left upper arm and was superficial. The victim also had abrasions on both knees and on the right pectoral region.

Perreira completely denied the prosecution's narrative. He claimed that Bagan was the aggressor who attacked him while he was walking down the street, purportedly hours after a confrontation between Perreira and the Spouses Bagan earlier in the day. According to Perreira's mother, Leonila Pereira, on January 18, 2009, about late afternoon, her son went out of their house to confront their neighbor Caloy Bagan, whose wife Virgie had hit her with a coffee mug in the head. When Perreira reached the house of Virgie, both Virgie and her husband Arnel were there. He asked why Virgie did that to his mother; Virgie answered him in a loud voice and angrily told him that what happened was just right for his mother, and Arnel told him that it was not even enough and he might as well include him. After hearing this, Perreira went home to avoid further trouble.

At around 6:40 o'clock in the evening of the same date, Perreira went out of their house to buy some bath soap. When he was on his way home, he was surprised when Arnel suddenly appeared in front of the latter's house from the sidecar of his motorcycle, hiding a kitchen knife with a length of more or less fourteen inches. Suddenly, Arnel stabbed him. He was not hit during the first thrust, but he was hit in his left hand during the second thrust. After which, he was able to hold the right hand of Arnel, which was holding the knife. He embraced Arnel from behind to stop him. They slipped and fell on the concrete pavement. Because of that, Arnel lost hold of the knife and he was able to get it. Thereafter, he felt dizzy because of blood loss and lost his senses and stabbed the victim. After the incident, he went to Edubas Compound at Sitio Tibagan, Barangay Balingasa to see his aunt who was working thereat and ask for help. When the barangay officials arrived, he went with them peacefully and surrendered the knife used in stabbing the victim. Perreira claimed he had no intention to kill the victim, nor did he plan to kill him, and that he was not carrying any weapon during that time. He further claimed that in the event he is found guilty, the mitigating circumstance of voluntary surrender should be considered in his favor.

The trial court found the prosecution's eyewitness testimony positive, clear, and categorical, and noted that the defense no longer cross-examined Virgie when she testified. The defense instead proffered the testimony of Perreira's mother, whose account contained inconsistencies — she had earlier testified that it was Caloy Bagan who hit her with a mug, but later claimed it was Virgie, and she gave conflicting statements as to whether the incident occurred in the morning or late afternoon.

• Self-Defense: Perreira insisted that he was justified in killing Bagan, who pulled a knife on him, compelling him to defend himself from the unprovoked attack; he maintained that the elements of the justifying circumstance of self-defense were present.
• Failure of Prosecution to Prove Guilt: Perreira argued that assuming his defense of self-defense was unavailing, the lower courts gravely erred in convicting him despite the prosecution's failure to prove his guilt beyond reasonable doubt.
• Mitigating Circumstances: Perreira argued that the lower courts gravely erred in not appreciating the mitigating circumstances of voluntary surrender and incomplete self-defense in his favor.

• Credibility of Prosecution Witnesses: The prosecution presented eyewitness testimony from Virgie Bagan, who testified to the sudden and unexpected attack on her husband, and the medico-legal officer who conducted the autopsy, establishing the fatal nature of the stab wounds.
• Self-Defense Not Established: The prosecution maintained that Perreira's claim of self-defense was uncorroborated and consisted of self-serving testimony, and that his mother's testimony was inconsistent and had no bearing on the claim of self-defense in the killing of Bagan.

• Self-Defense: Whether the lower courts gravely erred in not giving credence to accused-appellant's claim of self-defense.
• Sufficiency of Prosecution Evidence: Whether the lower courts gravely erred in convicting the accused-appellant of the crime charged despite the prosecution's alleged failure to prove his guilt.
• Mitigating Circumstances: Whether the lower courts gravely erred in not appreciating the mitigating circumstances of voluntary surrender and incomplete self-defense.

• Self-Defense: No. Perreira utterly failed to discharge the burden of proving unlawful aggression, the cornerstone of self-defense; his version of the events was uncorroborated, and his testimony was not accorded credence by the trial court, while the prosecution's eyewitness testimony was positive, clear, and categorical.
• Sufficiency of Prosecution Evidence: Yes, the conviction was proper. Treachery was correctly appreciated as qualifying the killing to Murder, as the attack was sudden and unexpected, and the victim was not in a position to defend himself at the time of the attack.
• Mitigating Circumstances: No. Voluntary surrender was not available because the barangay authorities had to search for Perreira and go to the place where he fled to before he was arrested; incomplete self-defense likewise failed for lack of unlawful aggression.

• Self-Defense: The Court cited Article 11 of the Revised Penal Code, which requires for self-defense: (a) unlawful aggression on the part of the victim; (b) reasonable necessity of the means employed by the accused to repel it; and (c) lack of sufficient provocation on his part. By invoking self-defense, the burden is placed on the accused to prove its elements clearly and convincingly. Self-defense relies first and foremost on proof of unlawful aggression; if no unlawful aggression is proved, no self-defense may be successfully pleaded. In this case, Perreira's version of events was uncorroborated, and the trial court did not accord credence to his testimony. The defense did not cross-examine Virgie, who testified to the attack, and instead proffered the inconsistent testimony of Perreira's mother regarding a supposed prior incident. The Court noted that self-defense cannot be justifiably appreciated when uncorroborated by independent and competent evidence or when it is extremely doubtful by itself, and that the accused claiming self-defense must rely on the strength of his own evidence and not on the weakness of the prosecution.

• Sufficiency of Prosecution Evidence: The Court applied the established rule in appellate review that the trial court's factual findings, including its assessment of the credibility of witnesses, are accorded great respect and even conclusive effect, especially when affirmed by the appellate court. Paragraph 16, Article 14 of the Revised Penal Code defines treachery as the direct employment of means, methods, or forms in the execution of the crime against persons which tend directly and specially to insure its execution, without risk to the offender arising from the defense which the offended party might make. The essence of treachery is that the attack is deliberate and without warning, done in a swift and unexpected way, affording the hapless, unarmed and unsuspecting victim no chance to resist or to escape. Two elements must be present: (1) at the time of the attack, the victim was not in a position to defend himself; and (2) the accused consciously and deliberately adopted the particular means, methods, or forms of attack employed by him. Both elements were present: Bagan was seated on the floor watching TV with his back towards the screen door when Perreira surreptitiously entered and immediately wrapped his left arm around Bagan's neck, repeatedly stabbing him in the chest with a knife. The attack was sudden and unexpected, as testified to by Virgie.

• Mitigating Circumstances: The requisites for voluntary surrender are: (1) the offender has not been actually arrested; (2) the offender surrendered himself to a person in authority or the latter's agent; and (3) the surrender was voluntary. These requisites were not met because the facts established that the barangay authorities had to search for Perreira and go to the place where he fled to; only then was he arrested. Incomplete self-defense likewise failed because unlawful aggression, its foundational element, was not established.

• Self-Defense (Justifying Circumstance) — Under Article 11 of the Revised Penal Code, self-defense requires: (a) unlawful aggression on the part of the victim; (b) reasonable necessity of the means employed by the accused to repel it; and (c) lack of sufficient provocation on the part of the person defending himself. All three elements must concur, and the defense relies first and foremost on proof of unlawful aggression. The burden is on the accused to prove these elements clearly and convincingly; if no unlawful aggression is proved, no self-defense may be successfully pleaded. Self-defense cannot be justifiably appreciated when uncorroborated by independent and competent evidence or when it is extremely doubtful by itself.

• Treachery (Qualifying Circumstance) — Under paragraph 16, Article 14 of the Revised Penal Code, treachery is the direct employment of means, methods, or forms in the execution of the crime against persons which tend directly and specially to insure its execution, without risk to the offender arising from the defense which the offended party might make. Its essence is that the attack is deliberate and without warning, done in a swift and unexpected way, affording the hapless, unarmed and unsuspecting victim no chance to resist or to escape. Two elements must be present: (1) at the time of the attack, the victim was not in a position to defend himself; and (2) the accused consciously and deliberately adopted the particular means, methods, or forms of attack employed by him.

• Voluntary Surrender (Mitigating Circumstance) — The requisites for voluntary surrender are: (1) the offender has not been actually arrested; (2) the offender surrendered himself to a person in authority or the latter's agent; and (3) the surrender was voluntary. Where authorities had to search for the offender and go to the place where he fled to before he was arrested, the surrender is not voluntary.

• "By invoking self-defense, the burden is placed on the accused to prove its elements clearly and convincingly. While all three elements must concur, self-defense relies first and foremost on proof of unlawful aggression on the part of the victim. If no unlawful aggression is proved, no self-defense may be successfully pleaded." — This passage articulates the foundational principle that unlawful aggression is the cornerstone of self-defense and that the accused bears the burden of proving it clearly and convincingly.

• "The essence of treachery is that, the attack is deliberate and without warning, and done in a swift and unexpected way, affording the hapless, unarmed and unsuspecting victim no chance to resist or to escape." — This is the canonical formulation of treachery as a qualifying circumstance, frequently cited in subsequent jurisprudence.

• "Self-defense cannot be justifiably appreciated when uncorroborated by independent and competent evidence or when it is extremely doubtful by itself. Indeed, in invoking self-defense, the burden of evidence is shifted and the accused claiming self-defense must rely on the strength of his own evidence and not on the weakness of the prosecution." — This passage states the rule that the accused invoking self-defense must rely on the strength of his own evidence, not on the weakness of the prosecution's case.

• People vs. Gutierrez, 625 Phil. 471 (2010) — Cited as controlling authority for the elements of self-defense and the requirement that unlawful aggression must first be proved, as well as for the definition and elements of treachery.
• People vs. Dela Rosa, G.R. No. 227880, November 6, 2019 — Cited for the rule that appellate courts give full weight and respect to the trial court's determination of the credibility of witnesses, and that such findings are accorded great respect and even conclusive effect when affirmed by the appellate court.
• Razon vs. People, 552 Phil. 359 (2007) — Cited in support of the principle that the accused claiming self-defense must rely on the strength of his own evidence and not on the weakness of the prosecution.
• De Vera vs. De Vera, 602 Phil. 877 (2009) — Cited for the requisites of voluntary surrender as a mitigating circumstance.
• People vs. Jugueta, 783 Phil. 806 (2016) — Cited as the prevailing jurisprudence basis for increasing the awards of moral damages, exemplary damages, and temperate damages in murder cases.

• Article 11, Revised Penal Code — The justifying circumstance of self-defense, requiring unlawful aggression, reasonable necessity of the means employed to repel it, and lack of sufficient provocation on the part of the person defending himself; applied in rejecting the accused's claim of self-defense for failure to prove unlawful aggression.
• Paragraph 16, Article 14, Revised Penal Code — Defines treachery as a qualifying circumstance; applied to qualify the killing to Murder because the attack was sudden, unexpected, and afforded the victim no chance to defend himself.
• Article 248, Revised Penal Code, as amended — Penalizes Murder qualified by treachery with reclusion perpetua to death; applied in affirming the penalty of reclusion perpetua in the absence of any aggravating and mitigating circumstances.
• Article 63(2), Revised Penal Code — Cited as the basis for imposing reclusion perpetua when the penalty for Murder is reclusion perpetua to death and there are no aggravating or mitigating circumstances.

Leonen, J. (Chairperson), Hernando, Inting, Delos Santos, and Rosario, JJ., concurred. (Rosario, J., was on official leave.)