G.R. No. L-1274, September 25, 1903
THE UNITED STATES, complainant-appellee, vs. TOMAS GUEVARA, ET AL., defendants-appellants.

FACTS:
On September 16, 1902, Corporal Tomas Guevara led a Constabulary squad, including soldiers Lucas Feliciano and Tomas Bernardo, to arrest Veronico de Leon in San Miguel de Mayumo, Bulacan, based on a report that he possessed a Remington file. After the arrest, the squad took Leon to a secluded spot about 20 brazas from his house. There, Lucas Feliciano beat Leon with the butt of his gun, causing fatal injuries. An autopsy revealed death resulted from a ruptured spleen due to heavy blows. An information for homicide was filed against Guevara, Feliciano, and Bernardo. The trial court acquitted Tomas Bernardo but convicted Tomas Guevara and Lucas Feliciano as principals and sentenced each to fourteen years, eight months, and one day of reclusion temporal. Both convicted defendants appealed.

ISSUE:
Whether Corporal Tomas Guevara is criminally liable, either as a principal or an accomplice, for the homicide committed by Lucas Feliciano.

RULING:
The Supreme Court modified the trial court’s decision.
1. Regarding Lucas Feliciano: The conviction is AFFIRMED. The evidence sufficiently established that he directly inflicted the fatal blows on Veronico de Leon.
2. Regarding Tomas Guevara: The conviction is REVERSED and he is ACQUITTED.

The Court held that for criminal liability as an accomplice under Article 15 of the Penal Code, there must be a showing of cooperation through acts of aid or assistance prior to or simultaneous with the crime, knowingly rendered to the principal. Mere presence at the scene of the crime is insufficient.

Applying this principle:
There was no evidence that Guevara directly induced, commanded, advised, or suggested the beating.
Guevara’s act of arresting Leon and turning him over to Feliciano was not, by itself, cooperation in the subsequent independent criminal act of homicide. The arrest and the murder were distinct events, and no prior agreement or understanding between Guevara and Feliciano to commit the homicide was proven.
* The testimony of witness Segundo Carpio, even if accepted as proving Guevara’s presence during the beating, was insufficient to establish that Guevara’s presence was for the purpose of encouraging Feliciano or increasing the odds against the victim. Without proof of such intent concurring with an overt act of cooperation, Guevara’s presence alone did not make him an accomplice.

DISPOSITIVE PORTION:
The judgment of the court below is affirmed with respect to the conviction of Lucas Feliciano and reversed with respect to Tomas Guevara, who is acquitted. One-half of the costs de oficio.

DISSENTING OPINION (Justice Torres):
Justice Torres dissented regarding Guevara’s acquittal, arguing that Guevara should be held liable as an accomplice. He emphasized that Guevara, as the commanding officer, was present during the beating and by his silence and failure to prevent the assault, gave tacit consent and moral aid to Feliciano. This omission of his duty, coupled with his prior act of arresting and delivering the victim to Feliciano, constituted sufficient cooperation to establish accomplice liability.