OPINION OF THE COURT
SCIRICA, Circuit Judge.
The central issue on appeal is the constitutionality of the federal witness tampering statute, 18 U.S.C. § 1512. A jury convicted Willie Tyler of violating the witness tampering statute by murdering a potential federal witness. Tyler claims error in the admission of a statement he submitted in connection with a previous sentencing. He also challenges several rulings of the trial court. We will affirm.
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