Date: December 1, 2020 Contact: email@example.com A Tulsa man was sentenced today in federal court for his role in a heroin trafficking operation with ties to Mexico's New Generation Cartel. U.S. District Judge Claire V. Eagan sentenced Alphonso Caldwell, of Tulsa, to 120 months in prison to be followed by five years of supervised release. In his plea agreement, Caldwell admitted that from November 2017 to June 2019 he possessed with intent to distribute and to distribute heroin. Caldwell stated that he purchased ½ kilogram to 1 kilogram of heroin multiple times per week from both Jose Garcia and Edson Garcia-Velasquez. Caldwell purchased the heroin and redistributed it to third parties who redistributed the heroin to others. He relied on customers' payments to purchase additional heroin. Caldwell will remain in the custody of the U.S. Marshals Service until transfer to a U.S. Bureau of Prisons facility. IRS Criminal Investigation assisted the Drug Enforcement Administration and U.S. Immigration and Customs Enforcement's Homeland Security Investigations in the investigation. The Oklahoma State Attorney General's Office and Tulsa Police Department also assisted in the investigation. Assistant U.S. Attorney Joel-lyn A. McCormick prosecuted the case. AUSA McCormick is the Lead Attorney for the Organized Crime Drug Enforcement Task Force for the Northern District of Oklahoma.