United States v. Jones, 453 F.3d 777, 780 (6th Cir. 2006) (sentencing court may rely on affidavits of complaint containing statements of fact "only" for "the limited inquiry of whether prior offenses constitute a single criminal episode or multiple episodes" for purposes of determining whether prior offenses qualify as "convictions [for crimes] ... committed on occasions different from one another" under the Armed Career Criminal Act, 18 U.S.C. 924(e)(1)); accord, United States v. Wells, 473 F.3d 640, 647 n. 5 (6th Cir.2007).