The year-end arrests of two Big Island men on federal charges for importing and selling illegal fireworks may be the tip of an investigative iceberg, or simply an easier case to make than one targeting similar shipments to the far larger underground marketplace here in Honolulu. I want to believe the former, but it’s not clear whether that would be a good bet.
According to a news release from the Office of the U.S. Attorney in Hawaii:
HONOLULU – United States Attorney Ken Sorenson announced that Darrel Goo, 52, of Keaau, Hawaii, and Cy Tamura, 45, of Hilo, Hawaii, were arrested and charged by criminal complaint yesterday with multiple fireworks-related criminal offenses, including transporting fireworks into Hawaii; engaging in the business of transporting, distributing, and storing explosive materials; and shipping, transporting, receiving, and possessing any explosive in and affecting interstate commerce. Goo was also charged with being a felon in possession of firearms and ammunition.
According to court documents, from in or around May 2016 through August 2025, Goo and Tamura conspired to engage in the business of transporting, storing, and distributing illegal fireworks in and around the Island of Hawaii. Goo used a fictitious name and Alaska addresses to conceal his annual fireworks purchases sourced from a fireworks company on the U.S. mainland. He also paid for the fireworks in batches of money orders and cash. Tamura arranged the shipping logistics from the U.S. mainland to Hawaii by falsely claiming that the fireworks shipments contained horticultural materials.
The arrests are the result of a multi-agency investigation involving the Internal Revenue Service – Criminal Investigation, the Bureau of Alcohol, Tobacco, Firearms and Explosives, and the Federal Bureau of Investigation, with assistance from the Hawaii Attorney General’s Office, Special Investigation and Prosecution Division, and the Hawaii Department of Law Enforcement, according to the news release.
I couldn’t help but note that the Honolulul and Big Island police departments are not listed among those cooperating in the investigation, although joint local-federal investigative task forces are common.
The charges were brought via a “criminal complaint” rather than a federal grand jury indictment. This typically signals that the defendants are cooperating, so that prosecutors did not have to seek an indictment. In addition, the government did not seek to detain either defendant, and they were both released on unsecured $50,000 bonds without opposition by prosecutors.
The affidavit of an IRS criminal investigator filed in support of the criminal charges provides further details of the case. There’s some interesting stuff here.
The government alleges Goo and Tamura bought fireworks from a Wisconsin company, and companies in Kentucky and Indiana that sold “overloads,” referring to “fireworks that appear to be consumer grade fireworks, but in truth and fact are packed with more explosive material….”
The pair would fly Wisconsin to make the purchases and have the fireworks loaded into containers for shipping. The fireworks company and/or its employees facilitated the illegal shipping to Hawaii by helping to disguise the loads, using top soil or hay to cover the pallets and fireworks wrapped in black plastic. However, no charges appear to have been filed against others who facilitated the illegal shipments.
“The contents were falsely declared by the shipper as ‘Perlite, Horticultural’, ‘Horticultural Supplies including Perlite/Potting Soil’, ‘Bailed Horse Hay & Potting Mix’, ‘Horse Hay/Potting Mix’, and ‘Bailed Hay'”, according to the affidavit. “On certain trips, they would rent a truck and pick up the overloads in Kentucky, then drive them back to Wisconsin to be packed and shipped to Hawaii.”
Their annual bulk fireworks purchases in Wisconsin ranged up to $131,000, while another $80,000 was “typically” spent on overloads, the affidavit alleges.
During early years of this fireworks conspiracy, payment was made using multiple money orders in amounts of $500 and $1,000.
“The money orders were purchased at multiple locations on the Island of Hawaii and were purchased by multiple individuals, including Tamura, in small increments to avoid detection,” the affidavit states. Purchases were made using a false name (“John Branco”) using fictitious Alaska addresses.
For example, in or around May 2020, GOO placed a fireworks order under Branco for 588 cases of aerial-type fireworks including mortar tubes, multi-shot aerial cakes, rockets, and roman candles. The Fireworks Company invoice total was $51,805.96 and included handwritten notes that stated, “50,000 Money Orders” and an Alaska customer address. The Fireworks Company deposited 50 money orders in $1,000 denominations provided by GOO into its bank account. The money orders were purchased from various Post Office locations in Hawaii County between on or about March 19, 2020, and April 24, 2020.
Hawaii Island had 25 post offices in 2020, according to the State Data Book.
According to the affidavit, investigators had Goo and Tamura under surveillance earlier this year when they traveled to the fireworks company’s warehouse in Prescott, Wisconsin. In July 2025, investigators executed a search warrant and seized approximately 18 pallets of boxes containing aerial fireworks, and another 18 pallets believed to be “overloads” trucked from Kentucky/Indiana. The fireworks were removed for testing and held as evidence, replaced with bags of concrete mix, and the two containers were sent on their way, trucked to the port in Long Beach, California, and then shipped by barge to Honolulu.
The only information about the distribution network on the Big Island is contained in a footnote.
During an interview with law enforcement on August 13, 2025, GOO stated that his fireworks sales season ran from October through December. GOO had a network of people who helped him sell fireworks and were paid between $20 and $50 per piece sold. GOO passed out inventory lists on paper and text. Customers texted GOO what they wanted, and GOO would deliver the fireworks to them. GOO used burner cellphones to communicate with his distributors and customers.
The full criminal complaint and affidavit were filed under seal in Federal District Court in Honolulu on December 26, and unsealed after Goo and Tamura were arrested.