Case Summary
As of my last knowledge update in October 2023, I do not have specific information about the case "United States v. Mark Johnson" with the docket number 6164796. Therefore, I cannot generate a case summary based on unavailable details.
If you provide me with relevant facts, legal issues, and outcomes associated with the case, I can help you create a case summary based on that information. Otherwise, you may want to check legal databases or court records for the specifics of the case to assist in generating a summary.