United States v. Medina-Valencia, 538 F.3d 831 (8th Cir. Aug. 13, 2008) (Texas conviction for indecency with a minor, in violation of Texas Penal Code 21.11, is sexual abuse of a minor for illegal re-entry sentencing purposes where indictment indicated that minor was under the age of seventeen and the defendant was at least 8 years older).