Medina vs. People of the Philippines

The non-presentation of the murder weapon is not indispensable to a conviction for homicide where the accused is positively identified by credible eyewitnesses and the physical evidence corroborates their testimonies, and the defense of relative is unavailing where the accused fails to prove by clear and convincing evidence the requisites thereof, particularly unlawful aggression, or where the defense theory is inconsistent with the claim that the victim's wound was self-inflicted.

On the evening of April 3, 1997, a fight erupted during a basketball game between Ross Mulinyawe and Ronald Medina, wherein Ronald struck Ross with a stone, causing a head injury. Randolf Medina (Ricardo's brother) rushed to the scene and sent Ronald home. Upon learning of his son's injury, Lino Mulinyawe, accompanied by drinking buddies Jose Tapan and Abet Menes and armed with a bread knife, proceeded toward the Medina residence to confront them. En route, Lino encountered Randolf, leading to a heated argument. Lino gripped Randolf's hand while Tapan punched Randolf in the face. Lino swung his knife at Randolf but missed. Randolf retreated, broke two beer bottles, and attacked Lino with them. Ricardo Medina, Jr. arrived at the scene, saw the commotion, entered his house to retrieve a kitchen knife, and confronted Lino. When Lino attempted to thrust at Ricardo and missed, Ricardo stabbed Lino on the left side of the chest near the heart. Lino fell face down, after which Ricardo walked away while Randolf threw broken bottles at the fallen victim.

• The Basketball Altercation: On April 3, 1997, between 9:00 and 10:00 p.m., Ross Mulinyawe (son of the victim) and Ronald Medina (brother of the accused) fought during a basketball game at Jabson Street, Acacia, Pinagbuhatan, Pasig City. Ronald hit Ross with a piece of stone, causing a head injury that required hospital treatment.
• The Confrontation: Upon learning of his son's injury, Lino Mulinyawe armed himself with a bread knife and proceeded to the Medina residence accompanied by drinking buddies Jose Tapan and Abet Menes. En route, Lino encountered Randolf Medina and confronted him about the fight. A heated argument ensued; Lino gripped Randolf's hand while Tapan simultaneously punched Randolf in the face.
• The Stabbing: Lino, holding the knife in his right hand, swung at Randolf but missed. Randolf retreated toward a store, broke two empty beer bottles, and attacked Lino with them. Ricardo Medina, Jr. arrived at the scene, confronted Lino, entered his house to get a kitchen knife, and emerged to stab Lino on the left side of the chest near the heart when Lino attempted to thrust at him. Lino fell face down. Ricardo walked away while Randolf threw broken bottles at the fallen victim.
• Medical Evidence: The post-mortem examination conducted by Dr. Emmanuel Aranas revealed a stab wound at the left mammary region measuring 3.6 by 1.4 cm, 5.5 cm from the anterior midline, 12 cm deep, directed posteriorwards, downwards, and medialwards, piercing the pericardial sac and left ventricle. The cause of death was the stab wound of the chest.
• Defense Theory: Ricardo claimed that Lino attacked him with a knife and that Lino accidentally stabbed himself when he fell frontward onto his own knife while swinging at Randolf.
• Trial Court Findings: The RTC found the trajectory of the stab wound incompatible with self-infliction, reasoning that if Lino fell frontward while holding the knife in his right hand, the wound would have been directed leftward and upward, not posteriorwards, downwards, and medialwards.

• Withholding of Material Evidence: Petitioner argued that the prosecution deliberately withheld the presentation of the actual knives used during the incident, which could have proven through blood analysis that Lino Mulinyawe fell on his own knife.
• Medico-Legal Corroboration of Self-Infliction: Petitioner maintained that the medico-legal testimony of Dr. Aranas corroborated the fact that the fatal wound could have been self-inflicted, contrary to the Court of Appeals' finding that the wound could not have been self-inflicted.
• Defense of Relative: Petitioner contended that the Court of Appeals erred in disregarding the justifying circumstance of defense of a relative under Article 11 of the Revised Penal Code, asserting that his immediate impulse upon seeing Randolf being attacked was to get a weapon and aid in his brother's defense.
• Improper Imposition of Penalty: Petitioner argued that the Court of Appeals failed to impose the proper sentence by disregarding the presence of mitigating circumstances and the lack of aggravating circumstances attendant to the case.

• Sufficiency of Prosecution Evidence: Respondent countered that guilt was proven beyond reasonable doubt through the credible and categorical testimonies of two eyewitnesses (Jeffrey and Sherwin) positively identifying Ricardo as the assailant, corroborated by physical evidence.
• Non-presentation of Weapon Not Fatal: Respondent argued that the presentation of the weapon is not a prerequisite for conviction where the perpetrator has been positively identified by credible witnesses; the non-presentation of blood samples and the instrument used does not negate criminal liability.
• Inapplicability of Defense of Relative: Respondent maintained that the requisites for defense of a relative were not met, particularly the element of unlawful aggression by the victim, and that Ricardo's invocation of this defense was inconsistent with his primary theory that the victim's wound was self-inflicted.
• Deference to Trial Court Findings: Respondent argued that the trial court's factual findings and evaluation of witness credibility, affirmed by the Court of Appeals, were entitled to great weight and respect absent any showing that the trial court overlooked or misconstrued cogent facts.

• Sufficiency of Evidence: Whether the prosecution proved Ricardo Medina, Jr.'s guilt beyond reasonable doubt for the homicide of Lino Mulinyawe notwithstanding the non-presentation of the knives used in the incident.
• Self-Inflicted Wound Theory: Whether the fatal stab wound could have been self-inflicted as claimed by the defense, or whether the trajectory described in the medico-legal report contradicts this theory.
• Defense of Relative: Whether the justifying circumstance of defense of a relative under Article 11 of the Revised Penal Code should be appreciated in favor of Ricardo Medina, Jr.
• Proper Penalty: Whether the Court of Appeals properly imposed the indeterminate sentence without appreciating alleged mitigating circumstances.

• Sufficiency of Evidence: The conviction was affirmed because the prosecution established guilt beyond reasonable doubt through the categorical and consistent testimonies of two credible eyewitnesses positively identifying Ricardo as the assailant, corroborated by medico-legal findings; the non-presentation of the weapon was not indispensable where other competent evidence proved the crime and the accused's authorship thereof.
• Self-Inflicted Wound Theory: The claim that the wound was self-inflicted was rejected because the trajectory described in the medico-legal report—directed posteriorwards, downwards, and medialwards—was physically incompatible with the defense theory that Lino fell frontward onto his own knife held in his right hand, which would have produced a leftward and upward trajectory.
• Defense of Relative: The justifying circumstance was properly rejected because Ricardo failed to prove by clear and convincing evidence the concurrence of its requisites, particularly unlawful aggression by the victim; moreover, his invocation of this defense was rendered incredible by its inconsistency with his primary theory that the victim's wound was self-inflicted.
• Proper Penalty: The indeterminate sentence imposed by the Court of Appeals was proper; the civil indemnity was increased from ₱50,000.00 to ₱75,000.00 to conform to current judicial policy, while the other awards of civil liability were sustained.

• Non-presentation of Murder Weapon — The presentation and identification of the weapon used are not indispensable to prove the guilt of the accused where the perpetrator has been positively identified by a credible witness and other competent evidence establishes the commission of the crime and the accused's authorship thereof. Positive identification where categorical and consistent and without any showing of ill-motive on the part of the eyewitnesses prevails over a denial, which being negative and self-serving evidence, cannot prevail over the positive identification of prosecution witnesses.
• Credibility of Witnesses — The trial court's factual findings and evaluation of the credibility of witnesses are entitled to great weight and respect when affirmed by the Court of Appeals, absent any clear showing that the trial court overlooked or misconstrued cogent facts and circumstances that would justify altering or revising such findings. This deference proceeds from the trial court's first-hand opportunity to observe the demeanor of the witnesses, their conduct and attitude under grilling examination.
• Defense of Relative — The requisites for defense of a relative under Article 11 of the Revised Penal Code are: (1) unlawful aggression by the victim; (2) reasonable necessity of the means employed to prevent or repel the aggression; and (3) in case the provocation was given by the person attacked, that the person making the defense took no part in the provocation. The burden of proving these requisites by clear and convincing evidence lies with the accused, as his invocation of this defense amounts to an admission of having inflicted the fatal injury.
• Test of Truth in Judicial Cognizance — Credibility of witnesses is determined by the conformity of their testimonies to human knowledge, observation, and experience. Whatever is repugnant to these belongs to the miraculous and is outside of judicial cognizance. A defense theory that is inconsistent with human experience or that contradicts another theory advanced by the accused renders both incredible.

• "Credibility of witnesses is determined by the conformity of their testimonies to human knowledge, observation and experience." — This passage encapsulates the fundamental standard by which trial courts assess witness credibility and serves as the epigraph for the decision's analysis of the defense's inconsistencies.
• "The presentation of the weapon is not a prerequisite for conviction. Such presentation and identification of the weapon used are not indispensable to prove the guilt of the accused much more so where the perpetrator has been positively identified by a credible witness." — This statement reinforces the doctrine that the prosecution need not produce the murder weapon where other competent evidence establishes guilt.
• "Positive identification where categorical and consistent and without any showing of ill-motive on the part of the eyewitnesses testifying on the matter prevails over a denial. Denial being negative evidence which is self-serving in nature, cannot prevail over the positive identification of prosecution witnesses." — This passage articulates the hierarchy of evidence between positive identification and mere denial.
• "We have no test of the truth of human testimony, except its conformity to our knowledge, observation, and experience. Whatever is repugnant to these belongs to the miraculous and is outside of judicial cognizance." — Quoted from Salonga's Philippine Law on Evidence, this passage underscores the limits of judicial tolerance for theories that defy physical possibility or ordinary human experience.

• People v. Malicdem, G.R. No. 184601, November 12, 2012 — Cited as controlling precedent for the doctrine that the Supreme Court defers to the trial court's factual findings when affirmed by the Court of Appeals.
• People v. Fernandez, G.R. No. 134762, July 23, 2002 — Cited for the principle that the non-presentation of the weapon and blood samples does not negate criminal liability where guilt is established by other evidence.
• People v. Dano, G.R. No. 117690, September 1, 2000 — Cited for the enumeration of the requisites for defense of a relative under Article 11 of the Revised Penal Code.
• People v. Bokingo, G.R. No. 187536, August 10, 2011 — Cited as basis for increasing the civil indemnity to ₱75,000.00 to conform to current judicial policy.

• Article 11, Revised Penal Code — Governs justifying circumstances, specifically defense of a relative. The Court applied this provision to determine that Ricardo failed to prove the requisites thereof.
• Article 64, paragraph 1, Revised Penal Code — Prescribes the rules for application of penalties when there are neither aggravating nor mitigating circumstances. The Court applied this in affirming the indeterminate sentence imposed by the Court of Appeals.
• Section 13, Article VIII, 1987 Constitution — Cited in the certification that the conclusions in the decision were reached in consultation before the case was assigned to the writer of the opinion.

Maria Lourdes P. A. Sereno (Chief Justice), Teresita J. Leonardo-De Castro, Diosdado M. Peralta, and Bienvenido L. Reyes.