Conspiracy to Possess with Intent to Distribute 400 Grams or More of Fentanyl (One Count); Distribution of 400 Grams or More of a Fentanyl Mixture (One Count); Distribution of 40 Grams or More of a Fentanyl Mixture (Three Counts); Distribution of Fentanyl (Two Counts); Possession of a Firearm in Furtherance of a Drug Trafficking Crime (One Count); Firearms Trafficking (One Count); Possession of a Firearm by a Prohibited Person (One Count); Distribution of a Controlled Substance (One Count)