Dist. Ct. committed procedural error when imposing 108-month term of incarceration on unlawful possession of firearm charge at second sentencing hearing, where applicable revised guideline range was 33 to 41 months, and where Dist. Ct. failed to adequately explain instant 160 percent increase from high end of guideline range. Dist. Ct. had imposed at first sentencing hearing sentence that was 22 months above high end of original guideline range, and Dist. Ct. failed to explain why 67-month upward departure from revised guideline range was proper in instant case. Moreover, instant sentence reflects offense level that was 10 levels higher that defendant’s assigned offense level. Fact that Dist. Ct. focused on defendant’s extensive criminal history to justify instant sentence did not require different result.