Downey Man Suspected of Membership in the 764 Nihilist Violent Extremist Group Arrested for Possession of Child Pornography
LOS ANGELES / August 29, 2025 —A Downey man suspected to be a member of the nihilistic extremist group known as “764” was arrested on Wednesday for possession of child pornography and will be in court this afternoon for an initial appearance, the FBI announced today.
Dong Hwan Kim, 27, was taken into custody at his Downey residence on Wednesday by members of the FBI’s Joint Terrorism Task Force (JTTF) following the execution of a federal search warrant and was charged in a federal criminal complaint filed in U.S. District Court in Los Angeles yesterday.
According to the complaint, several minor females reported that Kim enticed them and other minor females to produce and send him pictures and videos of themselves engaging in sexual acts between 2022 and the present. The minor females stated that Kim would then extort his victims by posting or threatening to post pictures and videos to their family members and others if they did not comply with his demands to send him more pictures and videos.
The complaint alleges that Kim engaged in this conduct as part of his participation in an online network known as “764,” a network of nihilistic violent extremists who engage in criminal conduct, including the targeting children for sexual exploitation online, to further the network’s goals of accelerating social unrest and the downfall of the current world order, including the United States Government.
The complaint details the nature of the 764, which is known to the FBI as a nihilistic violent extremism (NVE) group whose members engage in criminal conduct within the United States and abroad in furtherance of political, social, or religious goals that derive primarily from a hatred of society at large and a desire to bring about its collapse by sowing indiscriminate chaos, destruction, and social instability.
NVEs oftentimes target vulnerable individuals, including minors, frequently using social media platforms to share CSAM and gore material or grooming victims toward committing acts of violence. Victims can be blackmailed into complying with NVE demands, which vary but may include self-mutilation, online and in-person sexual acts, harm to animals, sexual exploitation of siblings and others, acts of violence, threats of violence, suicide, and murder.
The complaint alleges a series of incidents in which Kim enticed minor females into producing CSAM and threatened to send naked photographs to the victims’ family and others or post them online, among other threats.
According to a minor victim, Kim ran an online server where he and others openly created, posted, and traded child pornography and extorted minors to get nude and write names on their skin, cut themselves, and stick objects such as knives and bottles into their genitals.
During the search, agents found several CSAM videos and photographs in Kim’s possession. Agents also found evidence that Kim shared with others CSAM videos he produced and, when one associate complimented him, Kim touted his behavior by referring to himself as an “og,” according to the complaint.
Kim has used online monikers including “Ryzen” and “Lobster” and the FBI believes victims not yet identified may exist. Anyone who has been victimized or is aware of a victim of Kim is urged to contact the FBI at 1 800 CALL-FBI (1-800-225-5324).
If convicted on the charges alleged in the complaint, Kim faces a statutory maximum sentence of 20 years in federal prison.
The FBI’s Joint Terrorism Task Force is investigating this case with assistance from the Los Angeles Police Department and the Downey Police Department.
Assistant United States Attorney David Ryan, Chief of the National Security Division, is prosecuting this case.
FBI Los Angeles
Public Affairs Specialist Laura Eimiller
(310) 996-3343
Source: Federal Bureau of Investigation (FBI)
