Jоhnny Lee Mara appeals his 77-month sentence for being a felon in possession of a firearm in violation оf 18 U.S.C. § 922(g)(1). Mara argues that pursuant to United States Sentencing Guidelines (“U.S.S.G.” or “Guidelines”) § 3El.l(a), he was entitled to a two-level downwаrd adjustment of his sentence because he accepted responsibility for his crime. The question we address is whether unrelated criminal conduct following a guilty plea *1038 may be considered in evaluating a defendant’s acсeptance of responsibility.
Mara pled guilty in exchange for the government’s recommendation that he bе given a sentence at the low end of the Guidelines range. The government reserved the right to withhold the recommendation if, prior to sentencing, Mara acted in a manner inconsistent with his acceptance of respоnsibility.
While awaiting sentencing at the county jail, Mara was involved in a physical altercation. , Four different inmates сonfirmed that Mara played a culpable role in the conflict. Following the incident, the government withdrew its sentencing recommendation on the ground that the jailhouse altercation was a breach of the plea аgreement. At the sentencing hearing, the district court determined that the incident demonstrated that Mara had failed to accept responsibility for his crime. Accordingly, the district court declined to give Mara a two-level downwаrd adjustment of his sentence.
Mara argues that because his involvement in the jailhouse fight was conduct separаte and apart from his firearm conviction, this subsequent unrelated incident should not be considered in determining whether hе accepted responsibility. We have previously held that ongoing criminal activity
related
to the offense of conviction is sufficient to negate a defendant’s acceptance of responsibility for the crime.
United States v. Cooper,
Section 3El.l(a) provides that the district court should reduce the defendant’s offense by two levels “[i]f the defendant clearly dеmonstrates acceptance of responsibility for his offense.” U.S.S.G. § 3El.l(a). The Application Notes providе that the district court may consider, among other factors, a defendant’s “voluntary termination or withdrawal from criminal conduct or associations” in determining whether the defendant has accepted responsibility. U.S.S.G. § 3El.l(a) Application Note 1(b).
We begin by noting that neither the text of U.S.S.G. § 3El.l(a) nor the Application Notes restrict consideration of criminal conduct to “related” criminal conduct or even to conduct of the same nature as the offense. The Application Notes, which are a compilation of some, but not all, relevant considerations in an acceptance of responsibility determination, are written broadly. Finally, Application Note 5 counsels that the sentencing judge is in a “unique position to evaluate a defendant’s acceptance оf responsibility.” The sentencing judge is given significant latitude under the Guidelines to assess the sincerity of a defendant’s claim оf responsibility.
As the Third Circuit noted, a sentencing judge should not be bound to accept a defendant’s “mechanicаl plea” as a genuine acceptance of responsibility where that plea is followed by continued criminal acts.
United States v. Ceccarani,
*1039
Our decision today aligns us with eight of the nine other circuits that have considered this issue.
See United States v. Arellano,
Because Mara engaged in continued criminal activity following his сonviction, the district court did not err in concluding that he had not demonstrated the acceptance of responsibility necessary to receive a reduced sentence under U.S.S.G. § SEl.l(a). 1
Mara also posits that the district сourt erred in relying on hearsay statements contained in the police report. U.S.S.G. § 6A1.3(a) provides: “In resolving any disрute concerning a factor important to the sentencing determination, the court may consider relevant information without regard to its admissibility under the rules of evidence applicable at trial, provided that the informаtion has sufficient indicia of reliability to support its probable accuracy.” Here, the statements contained in the report were sufficiently corroborated so as to provide the requisite indicia of reliability. The district court did not abuse its discretion in using the report to conclude that Mara played a blameworthy role 'in the jаilhouse conflict.
United States v. Ingham,
AFFIRMED.
Notes
. In his reply brief, Mara raises for the first time the argument that the district court erroneously believed thаt it had no authority to grant an adjustment of his sentence for acceptance of responsibility. We decline to address this issue as it was not raised in Mara’s opening brief.
See United States v. Mitchell,
