United States v. Castillo-Arellano, 777 F.3d 1100

Castillo-Arellano, a noncitizen previously removed to Mexico, pled guilty under 8 U.S.C. § 1326(a) and (b)(2) for illegal reentry after an aggravated felony and was sentenced to 41 months (bottom of Guidelines range).
Prior Colorado convictions (attempted sexual assault on a 14-year-old, negligent child abuse, obstructing an officer) led to a 16-level enhancement under U.S.S.G. § 2L1.2(b)(1)(A) as a "crime of violence" and criminal-history points, producing a total offense level 21 and CHC II (Guidelines range 41–51 months).
Facts: defendant (25) had sexual relations with a 14-year-old who lied about her age; she became pregnant; defendant resisted arrest when first located; state sentenced him to probation, revoked later, then he was removed to Mexico twice before the federal illegal-reentry prosecution.
At sentencing, Castillo-Arellano sought a downward variance to 13 months, arguing the § 2L1.2 enhancement and criminal-history increase double-counted and overstated his prior offense’s seriousness; Government sought 41 months, citing seriousness and flight/resistance to arrest.
District court denied the variance, citing deterrence, respect for law, public-safety concerns related to serious sex offenses and resisting arrest, and imposed 41 months without supervised release; defendant appealed as substantively unreasonable.

Issue	Castillo-Arellano's Argument	Government's Argument	Held
Whether 41-month sentence is substantively unreasonable	Enhancement + CHC increase double-count and overstates prior offense; 13 months sufficient	Sentence within Guidelines is appropriate given prior violent-sex offense, resistance to arrest, and need for deterrence/public safety	Affirmed: sentence substantively reasonable; defendant failed to overcome presumption of reasonableness
Whether § 2L1.2 16-level enhancement is disproportionate because prior offense was "consensual" statutory rape	Prior offense comparatively less serious; merits downward variance	Enhancement properly applies to enumerated crimes of violence including statutory rape; sentencing court may weigh but need not downwardly vary	Enhancement properly applied; district court permissibly rejected downward variance
Whether similarities to Hernandez-Castillo warrant relief	Points to Hernandez-Castillo as a comparable case raising reasonableness concerns	Distinguishes Hernandez-Castillo on facts (age, ongoing support/contact, state-law classification)	Hernandez-Castillo distinguishable; no relief warranted
Whether district court abused discretion in weighing § 3553(a) factors	Argues court overvalued certain factors and failed to justify variance	Court thoroughly considered § 3553(a) factors and rationale for Guidelines sentence	No abuse of discretion; within ‘‘rationally available choices’’ standard

Gall v. United States, 552 U.S. 38 (reasonableness review framework for sentencing)
United States v. Regan, 627 F.3d 1348 (definition of abuse of discretion)
United States v. Alapizco-Valenzuela, 546 F.3d 1208 (procedural/substantive review two-step)
United States v. Chavez, 723 F.3d 1226 (§ 3553(a) factors in substantive reasonableness review)
United States v. Smart, 518 F.3d 800 (deference to district court’s weighing of § 3553(a) factors)
United States v. McComb, 519 F.3d 1049 (range of outcomes; defer to district court choices)
United States v. Balbin-Mesa, 643 F.3d 783 (presumption of reasonableness for within-Guidelines sentences)
United States v. Hernandez-Castillo, 449 F.3d 1127 (factually similar illegal-reentry with statutory-rape enhancement; distinguishing factors discussed)
United States v. Chavez-Suarez, 597 F.3d 1137 (downward variance may be based on relatively benign nature of particular predicate offense)