On Sunday, Oct. 25, 2026, the East Java Regional Police arrested Dwi Bagus Martono (40) in Madiun following an investigation into a missing persons report filed by the family of Dini Hardiyanti (30) on Oct. 5, 2026, at the Madiun City Police Station, as reported by Kompas.id. Police stated that Dini and her four-year-old son, Arshaka Ghafa El Faezya (referred to as AGEF in Kumparan.com reports), had been missing since Sept. 20, 2026, after travelling from Sukakarya, Megamendung, Bogor, West Java.
Did You Know? The investigation began as a missing persons report filed at the Integrated Police Service Center (SPKT) of the Madiun City Police on Oct. 5, 2026, after family members noted that both victims had been out of contact since Sept. 20, 2026.
Examination reveals suspect possesses superior intelligence traits
Following the arrest of Dwi Bagus Martono, the Directorate of General Criminal Investigation (Ditreskrimum) of the East Java Police revealed the results of a psychological examination conducted on the suspect. According to Dirreskrimum Polda Jatim Kombes Roy HM Sihombing, the test results indicated that the suspect possesses an above-average IQ and a tendency toward superior behavior.
“Memang hasil tes psikologisnya sudah keluar dan sudah disampaikan kepada kami, memang ada kecenderungan tersangka ini bersifat superior,” ujar Kombes Roy HM Sihombing on Tuesday, Oct. 27, 2026. Investigators noted that Dwi Bagus is an educated individual with a background from a prominent tertiary institution, traits that police say factored into how the two-day process of carrying out the killings and attempting to eliminate evidence was executed.
Sequence of Events and Police Investigation in Madiun
According to findings detailed by Kumparan.com and Kompas, the sequence of events began when Dwi Bagus and Dini arranged to celebrate the child’s birthday at the Telaga Sarangan tourist area in Magetan on Oct. 19, 2026. During the journey, Dwi Bagus received a call from his legal wife asking to be picked up, leading him to cancel the trip and check into a hotel in Madiun city with Dini.
The following day, a fatal argument erupted after Dini expressed feelings of neglect and asked to be returned to her parents, prompting Dwi Bagus to state he would return to his legal wife. Investigators stated that Dwi Bagus strangled Dini in the hotel room, placed her body in a sleeping bag, and later strangled the four-year-old boy inside a vehicle because he feared the child would act as a witness, as explained by Kombes Roy HM Sihombing.
Evidence Recovery and Legal Proceedings
Police teams subsequently searched the suspect’s residence in Kelurahan Winongo and the backyard at Jalan Kunir, Kelurahan Ngegong, Kecamatan Manguharjo, where they discovered bone fragments, a portable saw, a hoe, a shovel, rope, dexlite, a grinding machine, and two cars, as outlined by Kompas. After attempting to flee, Dwi Bagus was apprehended by the East Java Police Jatanras team on Sunday night, Oct. 25, 2026, in a relative’s hut in Jombang.
Authorities have charged the suspect under Article 459 of Law Number 1 of 2023 concerning the New Criminal Code (KUHP), carrying a maximum penalty of 20 years in prison, life imprisonment, or the death penalty, alongside provisions related to child violence resulting in death and premeditated murder under Article 340 KUHP as reported across police and media briefings.
Police trace missing persons timeline and arrest suspect
When were the victims first reported missing?
Family members filed a missing persons report at the Madiun City Police Station on Oct. 5, 2026, after Dini Hardiyanti and Arshaka Ghafa El Faezya had been unreachable since Sept. 20, 2026.
Baca di sini: https://t.co/d1BNha3a15DBM (40), tersangka pembunuhan istri siri dan anaknya di Madiun, disebut ber-IQ tinggi, berpendidikan tinggi, dan bekerja sebagai surveyor di perusahaan transportasi.~IQ #pembunuhan #Madiun #newsplay [20261027164748178] pic.twitter.com/XelCpM7ri3
Where was the suspect apprehended by police?
Tim Jatanras from the East Java Regional Police arrested Dwi Bagus Martono on Sunday night, Oct. 25, 2026, at a relative’s hut located in the Jombang area.
What specific items were seized by investigators during the case?
Police and forensic teams recovered items including a portable saw, a hoe, a shovel, rope, dexlite, a grinding machine, bone fragments, and two vehicles from the suspect’s properties.
More on Dwi Bagus Martono
Polisi Ungkap Tersangka Pembunuhan Ibu dan Anak di Madiun Punya IQ Tinggihttps://t.co/C4QYa2l1bg
Profil Dwi Bagus Martono, Tersangka Pembunuh Ibu dan Anak di Madiun Miliki IQ di Atas Rata-Ratahttps://t.co/2aLx48UfKh