PATTAYA / BANGKOK — What began as a desperate, high-profile search for two young Russian siblings who vanished before dawn near Pattaya has unraveled into a complex, multi-victim crime investigation. The disappearance of 22-year-old Diana Nazimova and her 17-year-old brother, Roman Nazimov, initially mobilized local police, drone units, and community volunteers across Chon Buri province. However, the breakthrough arrest of two primary suspects led to confessions that extended far beyond the initial missing persons report, uncovering a second tragic case and a dark timeline that investigators are now piecing together.

As law enforcement agencies in Thailand coordinate with forensic experts and international diplomatic representatives, the case has evolved into one of the most chilling crime investigations in the region’s recent history.

The Early Morning Vanishing in Huai Yai

The sequence of events began on Sunday, July 26, 2026, when Diana Nazimova and her teenage brother Roman departed their residence in the Huai Yai sub-district, located southeast of Pattaya. The family, including their mother Zarina Nazimova, had relocated from Russia to Thailand several years earlier, establishing a quiet life in the coastal community.

At approximately 4:00 AM, surveillance cameras captured the siblings leaving their housing estate on a rented Honda ADV 150 motorcycle. Their mother initially anticipated a brief outing, but concern turned to panic when hours passed without word and both mobile phones went completely offline.

A critical detail surfaced almost immediately in the investigation: the day before her disappearance, Diana had alerted her mother that her smartphone flagged an unrecognized Bluetooth tracking device nearby, leaving her concerned that someone was actively following their movements.

After formal missing-person reports were filed at the Huai Yai Police Station, search teams launched a multi-day sweep of the surrounding Bang Lamung and Sattahip districts. The first major physical clue emerged on July 29, when searchers located the siblings’ rented motorcycle buried on rural grounds near a local cemetery. The vehicle had been systematically dismantled to conceal its presence.

The Manhunt and the Confessions

The discovery of the buried motorcycle shifted the operation from a missing persons search to an active homicide inquiry. Provincial Police Region 2 investigators identified key suspects through surveillance footage that tracked two men riding through local checkpoints.

On Friday, July 31, 2026, a joint tactical force led by Provincial Police Region 2 commissioner Pol Lt Gen Chatchai Surachetphong surrounded a remote orchard in Wang Sombun district, Sa Kaeo province, near the eastern border. Officers apprehended two main suspects: 43-year-old ex-convict Thana Kerdthong (also known as “Pong”) and 39-year-old Thongchai Srinil (known as “Thong”).

Under interrogation, the men confessed to targeting the Russian siblings along Highway 1008 in an attempted robbery. According to suspect statements, a violent altercation ensued when Roman resisted the attackers. Roman was fatally shot, while Diana was physically assaulted and killed. The suspects then transported the bodies to a mountainous area in Chon Buri province and buried them in a shallow grave.

Acting on information provided during interrogation, forensic teams and police officers excavated a site in tambon Huai Yai late on July 31, recovering the bodies of both Diana and Roman.

The Discovery That Exposed a Second Tragedy

While the recovery of the siblings offered painful closure to the Nazimov family, the interrogation of the suspects yielded an unexpected and terrifying revelation. During questioning regarding their movements and previous activities in the Chon Buri area, the suspects began disclosing details related to additional crimes.

Interrogators pressed the men on outstanding missing persons files in the district, leading to a confession that revealed a second, previously unresolved tragedy. The suspects admitted to an earlier home invasion and robbery involving a local family who had vanished weeks prior without a trace.

Guided by suspect testimony, investigators conducted a second excavation in a coconut grove adjacent to the site where the Russian siblings were found. There, forensic technicians uncovered the remains of three additional victims—a local husband, wife, and their young daughter—who had been reported missing two months earlier.

Preliminary disclosures indicate that the suspects impersonated law enforcement personnel to gain entry into the family’s residence, restrained the victims, transported them to the secluded grove, and executed them before concealing the site.

Investigators Reconstruct the Master Timeline

The realization that two separate mass-murder sites were linked to the same perpetrator network has sent shockwaves through the local community and prompted Thai law enforcement to launch a sweeping review of unsolved missing persons cases across Eastern Thailand.

Senior police officials highlighted several core aspects of the ongoing investigation:

• Forensic Verification: Pathologists are conducting detailed post-mortem examinations on all recovered remains to establish exact causes of death and verify physical evidence against suspect admissions.

• Accomplice Tracking: Authorities are reviewing digital communications and CCTV logs to determine if additional individuals assisted in providing tracking devices, concealing vehicles, or facilitating logistics.

• Pattern Analysis: Detectives are examining whether the suspects operated a systematic predatory network targeting vulnerable travelers or residents in rural areas around Bang Lamung.

Thai Prime Minister and senior cabinet officials expressed formal condolences to the families of the victims, reassuring international diplomats and the public that all responsible parties will face the full weight of the legal system.

A Community Demands Answers and Accountability

Outside the Huai Yai Police Station, local residents and members of the expatriate community gathered to leave flowers and candles in memory of Diana, Roman, and the local family whose lives were cut short.

For Zarina Nazimova, who moved her children to Thailand seeking peace and stability, the conclusion of the search brings an unimaginable burden of grief. The warning signal on Diana’s phone—once a curious technical notification—now stands as a chilling harbinger of a tragedy that was already in motion.

As prosecutors in Pattaya prepare formal charges encompassing multiple counts of premeditated murder, armed robbery, kidnapping, and body concealment, law enforcement officers remain on high alert. The physical search in the forests of Chon Buri may be ending, but the investigation into how many secrets were buried beneath the soil continues.