Title
People vs. Tibon y Deiso
Case
G.R. No. 188320
Decision Date
Jun 29, 2010
A father, despondent over his wife's alleged affair, killed his two young sons in a fit of rage. Despite claiming insanity, he was convicted of parricide and sentenced to life imprisonment without parole.
A

Case Digest (G.R. No. 205228)

Facts:

  • Criminal Information
    • Two Informations filed against Honorio Tibon y Deiso:
      • Criminal Case No. 98-169605 – parricide of Keen Gist Tibon y Sumingit (3 years old) on or about December 12, 1998 in Manila by stabbing.
      • Criminal Case No. 98-169606 – parricide of Reguel Albert Tibon y Sumingit (2 years old) on same date and place by stabbing.
    • Accused pleaded “not guilty” at arraignment.
  • Trial Proceedings
    • Prosecution witnesses:
      • SPO3 Jose M. Bagkus (investigator)
      • Francisco Abello, Jr. (neighbor)
      • Dr. Emmanuel Aranas (Medico-Legal Officer)
      • Gina Sumingit (common-law wife and mother of victims)
      • Renato Tibon (brother of accused)
    • Defense witness:
      • Honorio Tibon – testified insanity, lack of memory.
  • Facts Established at Trial
    • Family Background
      • Accused and Gina cohabited since 1994; had two sons KenKen and Reguel.
      • They resided with extended family in a rented Manila house.
    • Events Prior to Killings
      • Gina left for work in Hong Kong.
      • Accused learned of wife’s alleged affair; became despondent, drank heavily, assaulted children.
    • Parricide Incident (Night of December 12, 1998)
      • At ~11:30 p.m., siblings found KenKen and Reguel lifeless with stab wounds; accused stabbed himself and attempted suicide.
      • All were rushed to Mary Johnston Hospital; children were pronounced dead.
    • Medical and Investigative Findings
      • Dr. Aranas: multiple fatal stab wounds consistent with extreme anger.
      • SPO3 Bagkus: accused, informed of rights, voluntarily admitted stabbing both children.
      • Sister Leilani and wife Gina corroborated accused’s confession.
    • Accused’s Defense of Insanity
      • Claimed amnesia of the event; cited NCMH medical records (mental fitness for trial).
      • Denied factual recollection of killings or hospital transfer.
  • Lower Courts’ Decisions
    • Regional Trial Court (August 2, 2005)
      • Found accused sane, testimony credible for prosecution, insanity defense rejected.
      • Convicted on two counts of parricide; imposed death penalty and P75,000 civil indemnity per count.
    • Court of Appeals (February 25, 2009)
      • Affirmed guilt, maintained presumption of sanity; reduced penalty to reclusion perpetua (RA 9346).

Issues:

  • Whether the Court of Appeals gravely erred in not considering the exempting circumstance of insanity in favor of the accused-appellant.

Ruling:

  • (Subscriber-Only)

Ratio:

  • (Subscriber-Only)

Doctrine:

  • (Subscriber-Only)

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