Title
People vs. Guillen
Case
G.R. No. L-1477
Decision Date
Jan 18, 1950
Julio Guillen, disillusioned with President Roxas, attempted his assassination using grenades at a public meeting, resulting in one death and multiple injuries. Convicted of murder and attempted murder, Guillen's intentional act led to the imposition of the death penalty under the complex crime doctrine.

Case Summary (G.R. No. L-1477)

Procedural History

Guillen was arraigned before the Court of First Instance of Manila (Case No. 2764), pleaded not guilty, and was tried by Judge Buenaventura Ocampo. He was convicted of murder and multiple frustrated murder, sentenced to death, ordered to indemnify Varela’s heirs ₱2,000, and charged court costs. The conviction was appealed directly to the Supreme Court.

Mental Condition Examination

Prior to trial, court-appointed experts confined Guillen at the National Psychopathic Hospital for eight days. Their unanimous report found no insanity but diagnosed “constitutional psychopathic inferiority” without psychosis. A defense expert dissented, yet the trial court ruled Guillen competent to stand trial.

Factual Background

Guillen, disappointed by President Roxas’s post‐election policies—particularly the proposed parity amendment—resolved to assassinate him. After losing his licensed revolver, he retained two hand grenades acquired during Manila’s liberation. He planned the attack for the Liberal Party’s Plaza de Miranda rally.

Evidence and Admissions

• Exhibit B: A Tagalog “last will” authored by Guillen, expressing personal responsibility and patriotic motive.
• At approximately 7 m from the platform, Guillen threw one grenade as Roxas concluded his speech. General Castaneda deflected it, saving the President but wounding bystanders.
• Guillen was identified within two hours by witnesses Angel Garcia and Manuel Robles, arrested at home, and gave a consistent voluntary statement. He reenacted the crime and pointed out the hidden second grenade.

Legal Issues

  1. Whether the killing of Varela constituted murder rather than homicide by reckless imprudence.
  2. Whether the simultaneous acts amounted to a complex crime of murder and multiple frustrated murder.
  3. Whether Article 49(1) of the Revised Penal Code was properly applied in fixing the penalty.
  4. Whether aggravating circumstances (nocturnity, contempt of public authority) were correctly considered.

Analysis on Malice and Criminal Liability

By deliberately throwing an explosive device at the President, Guillen acted with malice and foresaw harm to surrounding persons. Under Article 4 RPC, intent to kill extends criminal liability to unintended victims. Reckless imprudence is inapplicable when there is a deliberate intent to kill.

Application of Complex Crime Doctrine

The single act of throwing a hand grenade produced two grave felonies: (1) murder of Varela; (2) multiple attempted murders of Roxas and four bystanders. This falls squarely under Article 48 RPC, which mandates imposing the penalty for the most serious crim

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