GLENDALE, AZ — Three men are facing felony charges after a months-long investigation by the Glendale Police Department and the Drug Enforcement Administration led to the seizure of 335 pounds of methamphetamine and fentanyl tied to a Phoenix-based drug trafficking organization.
Since February 2026, Glendale narcotics detectives and the DEA Phoenix Taskforce have investigated the organization, which authorities say was led by 46-year-old Terrence Diamond. The multi-state investigation used extensive surveillance, court-authorized wiretaps, and investigative partnerships to identify what police described as a sophisticated operation responsible for transporting large quantities of methamphetamine and fentanyl across the country.
“He’s serving as the ringleader of this, this racketeering and drug distribution network,” Public Information Sergeant Justin Ramsay said…