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OSINT Case File

Monica Augustavia and Nino Pilan Murdered by Don Benonte and Rizwan Arlanga, Mandaluyong, Metro Manila, Philippines

Case Summary

Monica Augustavia, originally from Indonesia, moved to the Philippines with her family. After her mother's murder and her father's imprisonment, Monica was left in the Philippines. She developed a forbidden romantic relationship with her stepmother's brother, Rizwan Arlanga, a married man. This relationship caused family conflict and led to violent incidents involving Monica's business partner Don Benonte and Rizwan's roommate Nino Pilan. Don fatally attacked Nino after tensions escalated. Don was arrested, tried, and sentenced to 25 years in prison for murder. Monica was acquitted. Rizwan resigned and returned to Indonesia. Monica chose to remain in the Philippines.

Verified True
Confidence 4
Incident Date Nov. 27, 2022
Incident Type Murder

Basic Information

Country: Philippines

State/Province: None

City/Region: Mandaluyong

Incident Type: Murder

Relationship Status: Secret Marriage

Relationship Duration: Approximately 1 year

Affair / New-Partner Context

Recorded context: Affair started / overlapping relationship

Reported initiator: Both

Relationship timing: During marriage or ongoing partnership, before separation

Incident Date: Nov. 27, 2022

Incident Sequence and Additional Victims

Primary reported outcome: Homicide

Reported self-harm outcome: No suicide or attempt reported

Reported sequence: Order not reported / unclear

Additional victims reported: 1

Additional victim events:

  • Nino Pilan — Family or household member; Killed; Order not reported / unclear

Relationship Journey

Relationship Origins:

  • Family introduction

Relationship Stages:

  • Dating
  • Married Living Together

Analysis

Contributing Factors:

  • Cheating / Infidelity
  • Financial Issues
  • Domestic Conflict
  • Divorce / Separation
  • Family pressure

Red Flags:

  • Financial secrecy
  • Escalation Pattern / Violence
  • Manipulative behavior
  • Threats
  • Stalking / Repeated Harassment

Motives:

  • Revenge
  • Jealousy
  • Control/domination
  • Desire for new relationship

Relationship Outcomes:

  • Divorce filed
  • Legal case ongoing
  • Homicide during marriage
  • Arrest made
  • Relationship ended

People Link Graph

Monica Augustavia and Nino Pilan Murdered by Don Benonte and Rizwan Arlanga, Mandaluyong, Metro Manila, Philippines

Relationship Journey Graph

1

Origin

  • Family introduction

How the relationship or connection began.

2

Status

  • Secret Marriage

Approximately 1 year

3

Stages

  • Dating
  • Married Living Together

Important relationship phases recorded for this case.

4

Warning Signals

  • Financial secrecy
  • Escalation Pattern / Violence
  • Manipulative behavior
  • Threats
  • Stalking / Repeated Harassment

Reported red flags or early concern points.

5

Pressure Points

  • Cheating / Infidelity
  • Financial Issues
  • Domestic Conflict
  • Divorce / Separation
  • Family pressure
  • Revenge
  • Jealousy
  • Control/domination
  • Desire for new relationship

Contributing factors and possible motives from the available sources.

6

Incident

2022-11-27

7

Outcome

  • Divorce filed
  • Legal case ongoing
  • Homicide during marriage
  • Arrest made
  • Relationship ended

Recorded relationship or case outcome.

Sources

English labels are shown first. Original-language titles are preserved for source verification.

Monica Augustavia and Nino Pilan Murdered by Don Benonte and Rizwan Arlanga, Mandaluyong, Metro Manila, Philippines

elham kamyab99 - Iran · Original language: English

View original title

Forbidden relationship and murder in Indonesia/Philippines

AI Intelligence Assessment

Relationship Pattern

Infidelity

Pattern Analysis

The case involves a forbidden romantic relationship between Monica and her step-uncle Rizwan, who was married. The affair led to family conflict, financial strain, and violent escalation resulting in murder. The pattern reflects infidelity combined with domestic conflict and jealousy.

Investigative Notes

Police arrested Don Benonte based on surveillance footage and witness testimony. Don confessed to the attack but denied intent to kill. Monica was acquitted due to lack of direct evidence. The court sentenced Don to 25 years imprisonment. Monica's father testified accusing her of masterminding the crime, but this was unsubstantiated.

Investigation Confusion

Conflicting claims about Monica's involvement; defense argued Don acted instinctively; uncertainty about Monica's indirect role in the murder.

Case Reconstruction / Puzzle Pieces

Monica's forbidden affair with Rizwan led to tension with Rizwan's wife and friends. Nino Pilan, Rizwan's roommate, tried to intervene and warned Rizwan's wife. Don Benonte, Monica's business partner, became angry at Nino's interference and attacked him fatally. Surveillance footage and witness statements led to Don's arrest and conviction. Monica was acquitted. Rizwan resigned and returned to Indonesia.

Risk Assessment

High risk due to overlapping family roles, secret affair, financial dependency, and escalating violence culminating in homicide.

Key Takeaways

Secret family relationships and infidelity can escalate to violence. Financial dependency and social isolation contributed to tensions. Intervention by third parties may increase risk of violent retaliation. Surveillance evidence can be critical in prosecution.

AI Case Q&A

What early signals mattered most?

Unusual secret meetings between Monica and her step-uncle Rizwan, changes in Rizwan's behavior, and social media clues noticed by Rizwan's wife.

Which clues helped connect the case?

Social media evidence, witness observations of changes in relationships, and surveillance footage of the attack.

Which evidence types appeared strongest?

Surveillance camera footage showing Don attacking Nino; witness testimonies about Don's violent history; Monica's alibi with family party attendance.

Witness / Eyewitness Statements

Witnesses described Don as hot-tempered and aggressive with a history of fights. Family and friends observed changes in Rizwan's behavior and Monica's close association with him. Witnesses confirmed Monica's presence at a family party during the murder.

How did follow-up reports change the understanding?

Initial confusion about Monica's involvement was clarified by evidence leading to Don's conviction. Monica was acquitted. Rizwan resigned and returned to Indonesia after trial.

What remained unclear?

The extent of Monica's indirect involvement remains unclear. The motivations behind Don's extreme violence beyond anger are not fully explained.

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