G.R. No. 74522 . June 30, 1989.
PEOPLE OF THE PHILIPPINES, plaintiff-appellee, vs. ANASTACIO BONEO y BATALLER and JESUS BONEO y BATALLER, accused-appellants.

FACTS

On February 24, 1984, fishermen discovered the body of Solomon Barsaga submerged in the sea off Albay, with a rock tied to his neck to prevent it from surfacing. The corpse bore a hack wound on the neck and swellings, indicating he was killed before being dumped. An information for robbery with homicide was filed against brothers Anastacio and Jesus Boneo. The prosecution’s case, built on circumstantial evidence, hinged on the testimony of the victim’s wife, Paz Barsaga. She stated that on the evening of February 21, 1984, Anastacio fetched Solomon to purchase livestock, prompting Solomon to bring ₱3,000. Solomon left with Anastacio to meet Jesus, who was waiting in a boat. The next morning, Anastacio returned alone, forcibly took a pig, and later, Solomon’s body was found without the money.
The defense was alibi. The brothers denied fetching Solomon or knowing about the pig, claiming they were asleep in their home on a different island four kilometers away on the night in question. Their parents corroborated this, but their testimony was deemed less credible due to their relationship.

ISSUE

Was the circumstantial evidence presented by the prosecution sufficient to prove the guilt of the accused-appellants beyond reasonable doubt?

RULING

No. The Supreme Court reversed the conviction and acquitted the accused-appellants. The Court emphasized that while a conviction can rest on circumstantial evidence, such evidence must constitute an unbroken chain leading to a fair and reasonable conclusion of guilt, to the exclusion of all other hypotheses. Here, the prosecution’s evidence failed this standard. The narrative presented—that a 63-year-old man would voluntarily embark on a risky nighttime sea voyage with a large sum of money for a non-urgent transaction—was deemed illogical and contrary to common sense. Furthermore, key elements were missing: the murder weapons were not produced, the alleged boat used showed no traces of blood, and the stolen money was never recovered. The Court also found it improbable that Anastacio would return to the victim’s house to steal a pig after having allegedly already committed murder and robbery.
The weakness of the defense’s alibi does not relieve the prosecution of its burden to prove guilt beyond reasonable doubt based on the strength of its own evidence. The constitutional presumption of innocence must prevail where the evidence for the prosecution is insufficient and does not erase every reasonable doubt. The prosecution’s case, resting on a “slender reed” of implausible testimony and inconclusive circumstances, was even weaker than the defense presented. Consequently, the accused-appellants were acquitted.