Dwi Bagus Martono arrested for murder of siri wife and child

Dwi Bagus Martono, a 40-year-old freelance engineer working internationally, was arrested and named as a suspect in the premeditated murder of his siri wife Dini Hardiyanti, 30, and her four-year-old son, AGF, detikNews reported on November 3, 2026. Investigators uncovered that the killings took place on September 20, 2026, after which the suspect hid in Jombang under an assumed name before police tracked him down.

Freelance Engineer Takes International Projects

Martha Amalia Iflahah, 34, identified as the legal wife of Dwi Bagus, stated that her husband earned a living as a freelance engineer with projects spanning multiple countries. Speaking to the press on November 3, 2026, Martha explained that Dwi Bagus previously worked for a private survey company in Jakarta before transitioning to freelance contracts in August 2023. His first international project after going freelance took place in the United Kingdom, followed by work assignments in several other nations governed by specific project durations and agreements.

Jadi suami saya itu bekerja sebagai engineer. Dan mulai Agustus 2023, suami saya menjadi freelance, Martha told detikJatim, detailing how her husband would secure short-term contracts through agencies abroad before returning home between projects.

Hiding in Jombang and Changing Identity

Following the disappearance of Dini and her son on September 20, 2026, and the subsequent missing person report filed with the Madiun Kota Police on October 5, 2026, Dwi Bagus fled the region. According to details reported by Kompas.com, the suspect hid in a hut at an alternative medicine center in Dusun Cangkringan, Desa Mejoyolosari, Kecamatan Gudo, Jombang Regency. During his 12 days in hiding, he used the alias Amanullah to evade capture by law enforcement.

Investigators from the East Java Regional Police tracked the fugitive down by interviewing his legal wife, Martha, who provided valuable clues regarding the alternative medicine location. Ajun Komisaris Besar Arbaridi Jumhur, Head of Sub-Directorate III Jatanras at the East Java Police, noted that the suspect utilized connections from a previous religious pilgrimage to secure his hiding spot. Police arrested Dwi Bagus at the Jombang location on the night of October 25, 2026.

Suspect Searches Internet for Disposal Methods

Surabaya Kompas reported that a forensic examination of the suspect’s mobile phone revealed internet search histories detailing machinery prior to the killings. Investigators found that Dwi Bagus searched for and subsequently acquired a plastic waste shredding machine via online cash-on-delivery transactions to eliminate evidence. Police seized several items from the crime scene, including a portable saw, a hoe, a shovel, rope, Dexlite fuel, a grinding machine, and two vehicles—a Pajero and a Karimun.

Laboratory testing confirmed that bone fragments recovered from the suspect’s home yard belonged to the victims. Authorities established that Dwi Bagus carried out the killings following a complex domestic dispute rooted in jealousy regarding his marital status. Penyidik menjerat tersangka dengan Pasal 340 KUHP tentang pembunuhan berencana, dengan ancaman pidana mati, penjara seumur hidup, atau pidana penjara paling lama 20 tahun.

First Public Appearance of the Legal Wife

In her first public appearance during a press conference in Madiun on November 2, 2026, covered by kumparan, Martha Amalia Iflahah recounted her interactions with her husband during a reenactment of the crime on October 27, 2026. She urged him to face the legal proceedings with courage and religious grounding. She also shared that her family had forgiven him, while strongly warning him against taking his own life while in custody.

Kamu jangan bunuh diri di sana. Kalau kamu bunuh diri, nanti kamu tidak akan terlahir kembali sebagai manusia. Kamu masih punya kesempatan hidup untuk bertaubat, Martha stated, recounting her message to the suspect during the police proceedings. She simultaneously offered her condolences and an apology to the family of Dini Hardiyanti.