G.R. No. L-16499; September 30, 1963
THE PEOPLE OF THE PHILIPPINES, plaintiff-appellee, vs. LEODIZON HONRADO, ANSELMO LEONIN and REGINO LEONIN, defendants-appellants.

FACTS

Appellants Leodizon Honrado and Regino Leonin were drinking at the United Restaurant owned by Tan Sek Yee. They caused a disturbance, prompting the owner to intervene. The two resisted, fought him, and dragged him outside the restaurant, where a scuffle ensued as the victim tried to defend himself. At this point, a jeepney driven by Anselmo Leonin, Regino’s brother, arrived. Anselmo alighted, retrieved an iron bar, and without warning struck Tan Sek Yee three times on the head and neck. The victim died immediately from the injuries. All three accused were charged with and convicted of murder by the trial court, which found conspiracy and treachery.
The appellants contested the conviction, arguing the trial court erred in finding treachery and conspiracy. Honrado and Regino Leonin denied participation, presenting an alibi that they were merely drunk and unaware of the fatal attack. Anselmo Leonin claimed he was merely driving his jeepney route and was wrongly arrested. The prosecution evidence, however, included clear eyewitness accounts from disinterested parties who described the sequence of events, including Anselmo’s sudden assault with the iron bar.

ISSUE

The primary issue is whether conspiracy existed among the three appellants to commit murder, thereby making them all equally liable for the killing committed by Anselmo Leonin.

RULING

The Supreme Court modified the decision, acquitting Honrado and Regino Leonin of murder but convicting Anselmo Leonin thereof. The legal logic centered on the requirement of conspiracy, which demands proof of a prior agreement and common criminal purpose. The evidence failed to establish that Honrado and Regino Leonin, when they initially fought with the victim, had a preconceived plan to kill him. No motive for liquidation was shown. Their acts constituted unjust aggression but did not demonstrate a shared intent to commit murder.
The arrival and intervention of Anselmo Leonin were deemed coincidental and spontaneous. The Court analogized the case to precedents like People vs. Ibañez, where a relative suddenly joined a fight and inflicted fatal wounds. In such scenarios, only the actual killer is liable for the grave crime, absent proof that the others were aware of and cooperated in the homicidal intent. Since Honrado and Regino were engaged in a separate fight with the victim, who was actively defending himself, they could not have foreseen Anselmo’s sudden, fatal attack. Consequently, no conspiracy existed. However, Anselmo’s attack was treacherous because it was sudden and employed a deadly weapon, catching the defenseless victim unaware. Thus, only Anselmo was guilty of murder. Honrado and Regino were held liable only for slight physical injuries for their initial aggression.