G.R. No. L-5439
THE UNITED STATES, plaintiff-appellee, vs. PONCIANO SALAZAR and VENANCIO VILLANUEVA, defendants-appellants.
February 23, 1910

FACTS:
Ponciano Salazar and Venancio Villanueva were accused of murder for the killing of Felix Mendoza. The Court of First Instance of Pangasinan convicted them of homicide.

The prosecution’s key witness, Veronica Valenzuela (Mendoza’s concubine), testified that the defendants, along with two others, arrested Mendoza, bound him, and later executed him by shooting him multiple times in the back, first with a rifle by Salazar, then repeatedly with revolvers by all four, while he was kneeling by a bonfire they had built. She claimed this was a deliberate act, and the defendants later agreed to fabricate a story for the justice of the peace, alleging Mendoza was killed while attempting to escape during an attack by “malefactors.”

The defense, consisting of the defendants and their companions, claimed they were Constabulary members acting under orders to arrest Mendoza, who was known as a dangerous character, possessed illegal arms, and was suspected of various crimes. They alleged that during their custody, Mendoza attempted to seize a revolver from one of his captors. Perceiving this as an imminent threat and fearing for their lives, the defendants shot him.

ISSUE:
Are the defendants criminally liable for the death of Felix Mendoza, or are they exempt from liability under the principle of self-defense?

RULING:
The Supreme Court reversed the judgment of the lower court, finding that the defendants incurred no criminal responsibility.

The Court held that the defendants acted in lawful self-defense. It analogized the situation to previous cases where individuals were excused for killing an aggressor under “critical circumstances of a sudden assault,” even if the aggressor was disarmed momentarily. The Court found that if killing an unarmed man could be excused in such circumstances, then killing a “powerful desperador, who was doing his best to procure means to kill them” under similar critical circumstances should also be excused.

The Court determined that the defendants were “placed in the alternative of killing or being killed” due to Mendoza’s aggression and his dangerous reputation. Therefore, the act of the defendants in repelling Mendoza’s aggression constituted a true case of self-defense, exempting them from any criminal liability under paragraph 4 of article 8 of the Penal Code.

(Justice Torres dissented, arguing that while there was unlawful aggression by Mendoza, there was no reasonable necessity for the means employed, as four armed men could have subdued an unarmed prisoner without killing him. He believed the defendants exceeded their authority and should be held partially liable for homicide with a reduced penalty.)