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MARVIN CHARLES GABRION, II,
Petitioner-Appellant,
v.
UNITED STATES OF AMERICA,
Respondent-Appellee.
   No. 18-2382
Appeal from the United States District Court
for the Western District of Michigan at Grand Rapids.
Nos. 1:15-cv-00447; 1:99-cr-00076-1—Robert J. Jonker, District Judge.
Argued: May 24, 2022
Decided and Filed: August 4, 2022
Before: BATCHELDER, MOORE, and GIBBONS, Circuit Judges.


_________________________
OPINION
_________________________

ALICE M. BATCHELDER, Circuit Judge. This is an appeal from the denial of a 28 U.S.C. § 2255 motion for relief. We granted a certificate of appealability (COA) on four issues: an ineffective-assistance-of-counsel (IAC) claim concerning an alleged conflict of interest, a Brady claim concerning the FBI’s method of analyzing hair samples, an IAC claim concerning the investigation at the guilt stage, and an IAC claim concerning the mitigation investigation and presentation at the penalty stage. We find no merit to any of these claims and AFFIRM.