L. Whether alleged possession of a different gun 17 months after Mr. Lopez's charged felon-in-possession offense constituted relevant conduct?

I. Whether the use of a preponderance of the evidence standard in deciding to enhance Mr. Lopez's sentence violated his Fifth Amendment and Sixth Amendment rights?

III. Whether Mr. Lopez's prior Texas robbery conviction qualified as a crime of violence under § 4B1.2?

IV. Whether the use of Mr. Lopez's prior robbery conviction both to enhance his base offense level and to increase his criminal history score amounted to impermissible double counting?

Whether alleged possession of a different gun 17 months after Mr. Lopez's charged felon-in-possession offense constituted relevant-conduct