Fentanyl Methamphetamine Fentanyl Crisis Narcotics Distribution Kilogram-Level Redistributor Social Harm Fentanyl Ring Fentanyl Distribution Drug-Related Tools Evidence Tampering Illicit Fentanyl Production and Distribution Synthetic Opioids Opium Distribution Fentanyl-Xylazine Mixtures Xylazine-Laced Fentanyl Illicit Drug Supplies Adulterated Street Drugs Sinaloa Cartel DEA Investigation Drug Accountability Fentanyl-laced Cocaine Cocaine Seizures Border Control Fentanyl Trade Dark Web Sanctions Narcotics