His alleged crimes spanned multiple jurisdictions, so they're allowed to venue shop. As to why they chose it, I imagine it's convenient for the attorneys or LEO

His alleged crimes spanned multiple jurisdictions, so they're allowed to venue shop. As to why they chose it, I imagine it's convenient for the attorneys or LEOs who worked the case. If you read the complaint, they actually make sure to point out that agents had drugs shipped to that district to proves that it's valid.