Title
People vs. Mariano y Alejandro
Case
G.R. No. L-45966
Decision Date
Nov 10, 1978
A 1976 Manila case where Mario Mariano, under drug influence, raped and killed a 6-year-old. Despite his guilty plea and claims of intoxication, the Supreme Court upheld the death penalty, citing sufficient evidence and no valid defense.
A

Case Summary (G.R. No. 200233)

Procedural and legal frame

Offense date: November 11, 1976. Arraignment and subsequent proceedings: November 19, 1976, with additional hearings through January 25, 1977. Decision under review: November 10, 1978. Applicable constitution at time of decision: the 1973 Philippine Constitution. Controlling penal provisions cited in the record include Article 335 of the Revised Penal Code (rape with homicide), Article 63 (on indivisibility of the death penalty), provisions of Presidential Decree No. 603 (Child and Youth Welfare Code, Articles 189 and 192), and subsequent mention of Presidential Decree No. 1179 in concurring opinion.

Procedural posture and nature of review

Automatic review and judgment below

This Supreme Court decision is an automatic review of a conviction and sentence imposed by the Circuit Criminal Court, 6th Judicial District, Manila (Criminal Case No. CCC‑VI‑2466), in which the accused was convicted of rape with homicide, sentenced to death, ordered to indemnify heirs P12,000 for the victim’s death and P8,000 as moral damages, and to pay costs. The appeal raises, among others, the contention that the trial court improvidently accepted a guilty plea to a capital offense without proper inquiry and safeguards.

Arraignment, plea, and trial court inquiries

Plea of guilty, warnings, and subsequent inquiry

At arraignment on November 19, 1976, after the information was translated into Tagalog, the accused, then assisted by court‑appointed counsel (counsel de oficio), manifested his desire to plead guilty to rape with homicide. The trial court explicitly warned that the maximum penalty was death, and the accused nonetheless entered a plea of guilty. Given the gravity of the charge, the court delayed decision and set the case for hearing (November 25, 1976) to determine the precise nature of the crime and culpability. At subsequent proceedings the court repeatedly questioned the accused in vernacular language, confirmed his understanding of the charge and penalty, allowed counsel of his choice (Atty. Narciso Santiago) to appear de parte, and gave the accused opportunity to reconsider. The record contains direct colloquies showing the accused acknowledged comprehension of the charge, location, circumstances, and the possibility of life imprisonment or death, and persisted in his plea.

Evidence presented at trial

Witnesses, extrajudicial confession, and reenactment

Prosecution witnesses included the adoptive mother (Juanita Mapola), a 13‑year‑old eyewitness (Rebecca/Enrica Molina) who saw the accused earlier that day, a patrolman (Santiago Vargas) who testified to the accused’s voluntary written extrajudicial confession (Exhibit B) and reenactment (Exhibits E, E‑1, E‑2), and medico‑legal officer Dr. Luis Larion who testified to autopsy findings (Exhibits G–J). The accused also testified, produced his birth certificate (Exhibit 1), and initially denied intent to kill. The defense presented Dr. Angelo Singian (Medico Legal Section) who corroborated that death was due to vaginal laceration and profuse hemorrhage, and a witness (Cesar Villanueva) who observed the accused walking unsteadily that afternoon and stating he had “taken something.”

Forensic findings and corpus delicti

Autopsy, cause of death, and corroboration of confession

Both prosecution and defense medical witnesses concluded that death resulted principally from profuse hemorrhage from traumatic laceration of the vagina caused by a stiffened male organ or insertion of a hard blunt object disproportionate to the victim’s anatomy; head trauma was adjudged contributory. The extrajudicial confession was coherent, its voluntariness not contested, and was corroborated by the corpus delicti shown via forensic and eyewitness evidence. The Court relied on the combination of confession plus independent proof of the crime to sustain conviction.

Claim of improvident plea and adequacy of court safeguards

Examination of voluntariness, counsel presence, and understanding

The accused’s counsel argued that the guilty plea to a capital offense was accepted improvidently without sufficient inquiry into causes, understanding, or voluntariness. The Court rejected this, pointing to detailed colloquies in the record where the court explained the charge and consequences in simple vernacular language, confirmed comprehension, permitted choice counsel to appear and interview the accused, and afforded time to reconsider. The accused, of Grade 6 education, was repeatedly asked and persisted in his plea after warnings. The Court found the trial court took appropriate precautions and afforded opportunities to withdraw the plea; therefore the plea was not improvidently accepted.

Addiction and intoxication defense

Accused’s claim of drug influence and legal assessment

The accused alleged he was “not in his right senses” and an addict at the time of the offense. The Court observed that drug addiction is punishable and that voluntary intoxication ordinarily is no defense to criminal liability; moreover, the accused’s coherent confession and capacity to reenact suggest he was conscious of his acts. The Court thus treated addiction as not exculpatory and held the accused responsible for consequences of his criminal act irrespective of claimed lack of intent to kill.

Application of penal provisions and sentence

Rape with homicide, mandatory death penalty, and damages

The Court concluded that the accused committed rape with homicide beyond reasonable doubt. Under Article 335 of the Revised Penal Code (as amended) the commission of rape resulting in homicide mandates the death penalty; Article 63 was cited to emphasize the indivisibility of the death penalty irrespective of mitigating or aggravating circumstances. Consequently, the conviction was affirmed, the death sentence imposed, and civil indemnity and moral damages awarded as ordered by the trial court.

Procedural issue regarding marital status and PD No. 603

Reopening and relevance to penalties under Child and Youth Welfare Code

At the trial court’s own initiative, proceedings were reopened to determine the accused’s marital status because Article 189 in relation to Article 192 of Presidential

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