G.R. No. L-10736; August 31, 1915
THE UNITED STATES, plaintiff-appellee, vs. JUAN SUBINGSUBING, defendant-appellant.

FACTS:
On the evening of October 25, 1914, in San Remigio, Cebu, a Japanese man named Mariano accosted Pablo Montealto’s wife with indecent proposals. When she resisted, Mariano seized her. Juan Subingsubing intervened, urging Mariano to release her as she was married. Pablo Montealto, a 78-year-old man, then arrived. Mariano released the woman, insulted her, and violently assaulted Montealto, knocking him to the ground, getting on top of him, choking him, and beating him with his fist. During this struggle, Montealto stabbed Mariano in the abdomen with a cockfighting gaff, inflicting a fatal wound from which Mariano died the next day.

An information was filed charging both Montealto and Subingsubing with homicide. The trial court acquitted Montealto, finding he acted in complete self-defense. However, it convicted Subingsubing, sentencing him to prision correccional, based on testimony from a 12-year-old eyewitness, Alipio Sinining, who stated that Subingsubing handed something (which the witness did not clearly see) to Montealto during the struggle. Subingsubing appealed his conviction.

ISSUE:
Whether Juan Subingsubing incurred criminal liability for allegedly furnishing the weapon (a gaff) to Pablo Montealto, who used it to kill his assailant in legitimate self-defense.

RULING:
The Supreme Court REVERSED the trial court’s judgment convicting Juan Subingsubing and ACQUITTED him.

The Court held that even assuming the truth of the finding that Subingsubing furnished the gaff to Montealto, Subingsubing incurred no criminal liability. The act of furnishing the weapon under the specific circumstances constituted lawful assistance in another’s legitimate self-defense.

The requisites for exemption under Article 8, No. 4 of the Penal Code (self-defense) were fully present in Montealto’s case: (1) unlawful aggression by Mariano; (2) reasonable necessity of the means (use of the gaff) employed to repel it; and (3) lack of sufficient provocation on Montealto’s part. Since Montealto’s act was a lawful and reasonable defense of his person, the act of assisting him by providing the means for that defense must also be considered lawful.

The Court reasoned that it would be illogical and unjust to acquit the principal (Montealto) on the ground of complete self-defense and simultaneously convict the person who merely assisted him by providing the instrument used in that lawful defense. Subingsubing’s act was not motivated by revenge, resentment, or any illicit motive. Therefore, he was entitled to the same exemption from criminal responsibility.