Paulino Juarez was convicted of possessing a firearm as a felon, and was sentenced to 240 months’ imprisonment. We affirm.
*719 I. Background
At 3:45 a.m. on June 12, 2003, the police received a phone call complaining of shots fired in the 4500 block of S. Wood Street in Chicago. Officers Oscar Lanza and Eliel Roa responded to the call. As they approached on Wood Street, they saw Juarez hide behind a tree. Officer Roa left the vehicle and was approaching the tree when Juarez ran and dropped a gun from his waistband. The officers chased, tackled, and arrested him, and Officer Lanza retrieved the gun.
After his indictment for a violation of 18 U.S.C. § 922(g), Juarez filed a motion to quash arrest and suppress evidence. He attached an affidavit stating that he was walking down Wood Street when he saw the police car approaching, and the officers jumped out, seized him, and placed him in the backseat. The district court denied his motion without an evidentiary hearing, and also denied his motion to dismiss for lack of subject matter jurisdiction.
At trial the parties stipulated that the gun was manufactured in Ohio. After the jury returned a guilty verdict, the district court sentenced Juarez to 240 months’ imprisonment. He appealed.
II. Discussion
Juarez claims that the district court lacked jurisdiction under the Commerce Clause, abused its discretion by denying his motion without an evidentiary hearing, and imposed an unreasonable sentence.
A. Interstate Commerce
Juarez claims that the district court lacked subject matter jurisdiction because 18 U.S.C. § 922(g), the statute under which he was charged, is unconstitutional under the Commerce Clause.
See
U.S. Const. art. I, § 8, cl. 3. We review this constitutional challenge
de novo. United States v. Vallejo,
B. Denial of Motion Without Eviden-tiary Hearing
Juarez also claims that the district court abused its discretion by declining to hold an evidentiary hearing on his motion to quash arrest and suppress evidence. We review for abuse of discretion.
United States v. Woods,
The government claims that the facts in Juarez’s affidavit did not conflict with the officers’ version of events. His affidavit relates that he was walking down Wood Street when he saw a police car, and then the officers jumped out and grabbed him. According to the officers, Juarez was walking down Wood Street when he saw a police car, hid behind a tree, saw an officer approaching on foot, ran away, and disposed of his gun. The affidavit, the government argues, did not create a factual dispute because the government agrees with the facts therein, even though “it appears that the affidavit was written so as to avoid conflicting with the officers’ account” by omitting certain other details. In its view, Juarez’s statement that he was initially “walking on Wood Street” does not preclude the possibility that he later ran upon seeing the officers. This interpretation of the defendant’s burden would require Juarez to state that he “was just walking” or that he “was walking, not running” in order to warrant an evidentiary hearing. Yet in his affidavit the defendant need not deny the government’s version of events line-by-line; he need only ensure that his affidavit is “sufficiently definite, specific, non-conjectural and detailed enough” for the court to discern the disputed factual issue.
United States v. Villegas,
A disputed issue only warrants an evi-dentiary hearing, however, “if the difference in facts is material, that is, only if the disputed fact makes a difference in the outcome.”
United States v. Berkowitz,
C. Reasonableness of the Sentence
Lastly, Juarez claims that his sentence was unreasonable. It is undisputed that his proper offense level was 33, which together with his criminal history category of VI produced a Guidelines range of 235 to 293 months. The district court imposed a sentence of 240 months’ imprisonment. A sentence that falls with
*721
in the properly-calculated range merits a rebuttable presumption of reasonableness.
United States v. Mykytiuk,
Juarez claims that the district court did not adequately consider his troubled childhood or his need for psychological help. In his brief he alleges only that facts in the PSR could suggest a need for “some type of psychological help”; he does not claim that the district court “passed over in silence the principal argument made by the defendant” at the sentencing hearing.
See United States v. Cunningham,
III. Conclusion
For the foregoing reasons, we Affirm the judgment of the district court.
