A superseding indictment has been unsealed in Houston, charging two Venezuelan nationals with terrorism and international drug distribution. U.S. Attorney Nicholas J. Ganjei announced the charges against Giovanni Vicente Mosquera Serrano, also known as “El Viejo,” 37, and Jose Enrique Martinez Flores, also known as “Chuqui,” 24. Both are alleged high-ranking members of the foreign terrorist organization Tren de Aragua (TdA).
The indictment accuses them of conspiring to provide material support to TdA and participating in a cocaine distribution conspiracy aimed at the United States. The charges include one count of conspiring to provide material support to TdA, one count of providing such support, and counts related to international drug distribution.
Colombian authorities arrested Martinez Flores on March 31 under a provisional arrest warrant requested by the United States. He remains in custody in Colombia pending further proceedings. Meanwhile, Mosquera Serrano is still at large and has been added to the FBI’s 10 Most Wanted Fugitives List.
“Transnational criminal gangs and cartels have preyed upon Americans for far too long,” said Ganjei. “That ends now.” He emphasized that the Southern District of Texas is committed to dismantling these groups through every legal means available.
According to court information, Mosquera Serrano is a senior leader overseeing TdA operations across multiple regions including Colombia and the United States, while Martinez Flores holds a high-ranking position in Bogota, Colombia. The charges allege they facilitated the delivery of over five kilograms of cocaine for international distribution.
If convicted, both face potential life sentences and fines up to $10 million each.
Authorities urge anyone with information on Mosquera Serrano’s whereabouts to contact the FBI via WhatsApp or Telegram at 281-787-9939 or submit tips online at tips.fbi.gov. A reward up to $3 million is offered for information leading to his arrest or conviction.
The investigation involved multiple agencies including the FBI, Drug Enforcement Administration (DEA), Houston Police Department, Harris County Sheriff’s Office, Colombian National Police, and Colombian Attorney General’s Office. Significant assistance came from various U.S. Justice Department offices.
Assistant U.S. Attorneys Casey N. MacDonald and Anibal J. Alaniz are prosecuting alongside Deputy Director David C. Smith from Joint Task Force Vulcan (JTFV). JTFV was established in 2019 targeting MS-13 but has expanded its focus to include TdA.
This case is part of Operation Take Back America—a nationwide initiative by the Department of Justice aiming to combat illegal immigration and eliminate transnational criminal organizations like cartels.
An indictment serves as a formal accusation rather than evidence; defendants remain presumed innocent until proven guilty through due process.



