Case Summary (G.R. No. 112092)
Factual Background: The Robbery With Homicide
The events leading to the killing began with the planning of a hold-up directed at a wealthy Chinese tobacco leaf dealer, Chua Nai Su, who ran his business from the premises of Insular-Yebana Tobacco Corporation. The record showed that Ruben Concepcion and Conrado de Leon conceived the scheme to extort money through a robbery against the victim. Ruben allegedly delayed acceptance until he could secure companions. Thereafter, Ruben traveled to Naguilian, Isabela, accompanied by Manuel Mamuri and Aurelio Tattoc.
On April 25, 1960, Ruben, Mamuri, and Tattoc boarded a bus from Solano, Nueva Vizcaya, bound for Naguilian, after which they met Conrado de Leon at the Minanga-Minallo junction. Conrado brought them to his residence area, then later took them to the house of Ben Paredes, described as a small restaurant near the municipal building. During the night, Ben Paredes accommodated the group at the municipal building, after which Ben Paredes, Conrado, and Ruben conferred about the plan.
The following morning, April 26, 1960, the group went toward the corporation premises at Palattao. Before reaching the warehouse, they made a stop at a “kiosko” near the junction of the national highway and an old road. There they met Pascual Bartolome, who induced the group by promising monetary reward contingent on killing the Chinaman and on the ability to rob. As soon as the victim passed by in his pick-up heading toward the warehouse, the conspirators proceeded with further arrangements. Bartolome reiterated his promise and indicated they would meet again in the office of the Justice of the Peace.
At the municipal building, several local officials, including Chief of Police Protasio Santos and the mayor and justice of the peace, allegedly provided additional inducements and promised benefits to those who would succeed in killing the victim and robbing him. The record recounted that they assured the conspirators they would sell the lot where the warehouse stood and divide proceeds among themselves. The group was also promised immunity and assurance that nothing would happen because they were the officials who would investigate the matter.
After these arrangements, the conspirators obtained firearms. Santos allegedly gave his nickel-plated revolver to Ben Paredes, who in turn handed firearms to Conrado de Leon and to the others assigned to the robbery. The plan then proceeded with Ruben as the one who confronted and shot the victim inside the pick-up. Mamuri drove the pick-up away after the homicide, with Tattoc positioned behind him.
The attack unfolded when the victim’s pick-up moved backward and out of the gate, heading along the road toward Cauayan. Ruben ran forward, climbed onto the vehicle, poked his revolver at Chua Nai Su inside the pick-up, and fired multiple shots. The driver escaped unharmed. The victim, after attempting to run toward the gate, was shot again and fell dead near the guardhouse. Ruben ordered Mamuri to take the wheel and the conspirators fled toward Ilagan. Near a bridge in the territorial jurisdiction of Naguilian, Ruben ordered Mamuri to swerve the vehicle into a ravine with bushes, after which they ransacked the vehicle and found the victim’s portfolio containing cash. Ruben counted the money and gave shares to those he designated as participants, while leaving Santos with reluctance because Santos would later investigate whether the amount reported was correct. Santos refused to take his share at the time and directed that the accused change clothes before leaving for Ilagan, promising to handle the collection of the reward.
Immediate Police Investigation and Corroborating Physical and Witness Leads
The authorities became aware of the incident before noon on April 26, 1960. Chief of Police Santos conducted on-the-spot investigation at the corporation premises. Officers from the Philippine Constabulary arrived and conducted their own investigation. The victim’s body was autopsied at the scene by a health officer, who testified that death resulted from internal hemorrhage caused by gunshot wounds that damaged vital organs, with the slug recovered near the left back and another wound penetrating the right forearm.
The record also described investigative steps tied to a reported description of the triggerman’s checkered polo shirt. Officers sought the wearer and, upon following a lead from Hilario Tomines, captured suspicion around a man who matched that description and was alleged to have been seen with Conrado de Leon and companions at the relevant times. Later investigation focused on Conrado de Leon’s possession of clothing matching the description.
On April 26, 1960, Captain Achanzar proceeded to the house of Conrado de Leon and found Conrado returning with bags containing clothing. Achanzar seized a checkered light brown polo shirt with long sleeves after it matched the described color and coincided with a mismatch in sizes among other items in the bags. Employees identified the seized polo shirt as similar to that worn by the triggerman. The following morning, blood stains were discovered on the right sleeve, which further heightened suspicion. Conrado de Leon was arrested and questioned at the PC headquarters in Ilagan.
Conrado de Leon’s Statements and the Evolution of the Information
During interrogation, Conrado de Leon admitted participation and initially implicated multiple named persons. A written statement taken down by PC officers remained unsigned. When Conrado later attempted to swear the statement before the Justice of the Peace, he asserted that the names of certain persons he had earlier mentioned were fictitious. A health officer examined him and found no sign of violence; the Justice of the Peace wrote a notation indicating the examination was conducted before him. After further questioning, Conrado reiterated that the actual companions were Ben Paredes, Ruben Concepcion, Manuel Mamuri, and Aurelio Tattoc, while removing the earlier fictitious names.
On the strength of admissions and subsequent sworn statements, PC officers arrested Ruben Concepcion and Aurelio Tattoc in Solano. Manuel Mamuri initially eluded arrest and fled but later surrendered. Ben Paredes was arrested in Naguilian on April 29, 1960. Separate Informations against Santos and Bartolome were filed on June 9, 1960 and September 14, 1960, respectively, after initial charging of the others and after further development of the record through subsequent investigations and surrendered participation.
Appellants’ Defenses: Alibi and Allegations of Torture
The appellants offered defenses of alibi. Ben Paredes claimed he stayed at his restaurant on April 25 and April 26, 1960, from early evening to late morning and that he did not host or accompany the alleged conspirators. He also alleged that upon arrest, he was tortured by PC officers in Ilagan to force him to reveal the firearm and to confess participation. He narrated a series of physical maltreatment and deprivation of meals during custody.
Protasio Santos similarly presented alibi evidence. He claimed that on April 26, 1960, he was in his office in the municipal building and attended to other investigations, only going to the crime scene after he received news, and later had officials at the municipal building question the driver and a carpenter. He denied meeting Ben Paredes that morning and claimed he later made a spot report about his findings.
Pascual Bartolome claimed he never left his house on April 26, 1960 and spent the whole day making wood floaters for fishing nets. He denied visits by prosecution witnesses in the morning and denied seeing the other accused at his house. He also alleged procedural deprivation, asserting that he was denied the constitutional right to confront and cross-examine prosecution witnesses whose testimonies were taken before his arrest and subsequent indictment. His theory was that later use of earlier testimony violated his confrontation right.
Issue on Appeal
The central issue was whether Ben Paredes, Protasio Santos, and Pascual Bartolome had any hand in committing the robbery with homicide, despite their alibi defenses and their attacks on the credibility of evidence used against them.
The Parties’ Contentions on Credibility and Confrontation
The appellants attacked the trial court’s reliance on evidence given by state witness Aurelio Tottoc and by accused Ruben Concepcion, who had pleaded guilty. They argued that these witnesses were “polluted sources” because they had taken part in the crime. They contended that their testimony should have been received with grave suspicion.
Bartolome added a constitutional argument on the right to confront and cross-examine witnesses, asserting that some prosecution witnesses testified before his arrest and indictment and that he therefore could not cross-examine them.
Legal Reasoning: Weight of Accomplice Testimony and Corroboration
The Court rejected the “polluted sources” argument. It acknowledged settled doctrine that testimony of an accomplice should be accepted with extreme caution. However, it held that when a participant in the crime’s testimony is corroborated by other prosecution witnesses, it should be given weight and credibility. The Court found exactly that corroboration in the case: the narrative supplied by Tottoc and Ruben Concepcion was materially supported by multiple other testimonies.
Hilario Tomines corroborated that he was on the same bus ridden by Ruben, Mamuri, and Tottoc, and that upon arriving at Naguilian they alighted at the Minanga-Minallo junction and conversed with Conrado de Leon. He further corroborated that Ruben asked whether they could obtain guns, gesturing the act. Other witnesses, including a detention prisoner in the municipal building, Loreto Remigio, corroborated that Ben Paredes and the accused met and conferred in the municipal building at the relevant evening, and that they left with the mat used the
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Case Syllabus (G.R. No. 112092)
Parties and Procedural Posture
- The case involved appeals by Ben Paredes, Protasio Santos, and Pascual Bartolome, from a Court of First Instance of Isabela decision convicting them of robbery with homicide.
- The same trial court decision also convicted Conrado de Leon, Ruben Concepcion, and Manuel Mamuri, with Ruben Concepcion having pleaded guilty and Conrado de Leon not having appealed.
- The decision sentenced the accused to reclusion perpetua, with the accessory penalty of the law, and ordered them to indemnify the heirs of Chua Nai Su in P6,000.00 and the Insular-Yebana Tobacco Corporation in P10,000.00, plus the cash money robbed and costs proportionately.
- The appeal did not require reconsideration of the offense itself because the Court found the robbery with homicide perpetration beyond dispute.
- Manuel Mamuri gave notice of appeal but later withdrew it on December 7, 1961.
- Ruben Concepcion withdrew from trial posture as a not guilty accused by later pleading guilty, which substantially affected the evidence landscape on appeal.
- The Court treated the sole appellate question as whether Ben Paredes, Protasio Santos, and Pascual Bartolome had any hand in the commission of the crime.
Key Factual Allegations
- On April 26, 1960, Chua Nai Su was accosted and shot inside a pick-up truck owned by the Insular-Yebana Tobacco Corporation shortly after leaving the company warehouse at Barrio Palattao, Naguilian, Isabela.
- The driver fled unharmed, while Chua Nai Su tried to follow but fell dead near the company guard house by the gate.
- The perpetrators were seen hurriedly leaving using the same pick-up truck used by the victim and his driver.
- The Court established a conspiracy narrative beginning with Ruben Concepcion, who knew Conrado de Leon and initially proposed earning by holding up a wealthy Chinaman tobacco dealer.
- After recruiting co-accused Manuel Mamuri and Aurelio Tattoc, the group moved from Solano to Naguilian and proceeded toward the municipal building where sleeping and planning were arranged.
- During a prior night meeting, Ben Paredes, Conrado de Leon, and Ruben Concepcion conferred about robbing Chua Nai Su, while Manuel Mamuri and Aurelio Tattoc listened nearby.
- The group planned a reconnaissance trip to the following morning and then targeted the Insular-Yebana Tobacco Corporation warehouse in Barrio Palattao.
- Before the assault, Pascual Bartolome induced the “hatchetmen” with a promise of P500.00 if they killed Chua Nai Su, and P1,000.00 if they could not rob any amount.
- Additional inducement was allegedly provided by municipal officials who promised land transfer and immunity from investigation, including Protasio Santos as Chief of Police and other local officials.
- Firearms were supplied by Protasio Santos and Ben Paredes shortly before execution of the hold-up.
- The actual killing occurred as Ruben Concepcion fired at Chua Nai Su multiple times, the driver escaped, and Chua Nai Su died before reaching the company guardhouse.
- After the shooting, Manuel Mamuri drove the pick-up into a ravine area, where the conspirators ransacked the vehicle, found P400.00 in the portfolio, and divided money among members, including Ben Paredes and Conrado de Leon.
- The trio changed clothes, returned on a bus to Ilagan, and Ruben Concepcion, Manuel Mamuri, and Aurelio Tattoc separated from Ben Paredes and Conrado de Leon.
- The Court emphasized that the crime’s sequence and the conspiratorial roles were supported not only by confessions but also by extensive corroborative testimony.
Charges, Consolidation, and Trial Events
- The case initially proceeded through multiple Informations for the same offense of Robbery with Homicide.
- An Information for Criminal Case No. 2702 was filed based on extra-judicial confessions, against Conrado de Leon, Ruben Concepcion, Aurelio Tattoc, Ben Paredes, and Manuel Mamuri.
- A separate Information for Criminal Case No. 2718 was filed on June 9, 1960 against Protasio Santos, Chief of Police of Naguilian.
- When both cases were called for hearing on June 23, 1960, the prosecutor filed an Amended Information consolidating the cases for identical charges, resulting in the consolidated case being henceforth known as Criminal Case No. 2702.
- On June 23, 1960, the trial court discharged Aurelio Tattoc to use him as state witness.
- All accused except Manuel Mamuri entered not guilty pleas under the amended charge, and trial commenced immediately thereafter.
- Manuel Mamuri later surrendered, underwent arraignment with a not guilty plea, and joined the trial on the same charge.
- A subsequent Information for Criminal Case No. 2773 was filed on September 14, 1960 against Pascual Bartolome, and arraignment occurred on September 22, 1960.
- Upon prosecution petition and without objection, Criminal Cases Nos. 2702 and 2773 were tried jointly.
- Counsel for Ruben Concepcion later withdrew a prior not guilty plea, resulting in a guilty plea and sentencing for him in the afternoon of arraignment day.
- The Court of First Instance later handed down a joint decision convicting Ben Paredes, Conrado de Leon, Manuel Mamuri, Protasio Santos, and Pascual Bartolome.
Evidence and Investigation Narrative
- The Court’s evidentiary account relied on (a) extra-judicial confessions, (b) corroborative testimony from prosecution witnesses, and (c) physical and forensic investigation.
- Conrado de Leon was arrested following questioning at PC headquarters after being initially picked up on April 27, 1960.
- Conrado de Leon’s statement led to the arrest of Ruben Concepcion and Aurelio Tattoc on April 28, 1960 and Ben Paredes on April 29, 1960.
- The victim’s body was autopsied at the scene by the Assistant Provincial Health Officer, who found gunshot wounds including one that caused internal hemorrhage due to injury to vital organs.
- A description of the triggerman’s clothing guided the search for suspects.
- Capt. Manalo picked up Hilario Tomines for questioning after Tomines matched the described checkered polo shirt.
- Hilario Tomines reported seeing a man in a checkered polo shirt on the bus on April 25, 1960, meeting with Conrado de Leon, and later seeing him walking with Ben Paredes toward Palattao on the morning of April 26, 1960.
- On the same day, investigation by PC officers included questioning employees Hermenegildo Cabucan and Andrea Domingo, with alleged inducement to sign affidavits.
- Capt. Achanzar then traced Conrado de Leon, seized a light brown checkered polo shirt with long sleeves from bag contents after discovering blood stains upon later examination, and had it identified by employees of the Insular-Yebana Tobacco Corporation.
- Conrado de Leon first admitted participation and named additional persons in a written statement taken late on April 26, but later revealed that some names were fictitious and claimed maltreatment.
- The Court noted the physical examination by the Municipal Health Officer showed no signs of violence, reflected in the notation on the statement and corresponding certification identified during trial.
- After the initial admissions, Conrado de Leon reiterated real accomplices as Ben Paredes, Ruben Concepcion, Manuel Mamuri, and Aurelio Tattoc.
- Ruben Concepcion and Aurelio Tattoc later executed sworn, written statements before the Assistant Provincial Fiscal, based on sworn admissions and a re-writing of Conrado de Leon’s statement with fictitious names removed.
- The Court treated the co