JOHN K. BUSH, Circuit Judge. Sterling Roberts appeals his conviction for federal crimes relating to the death of Robert “Bob” Caldwell. Mr. Caldwell was in a child-custody dispute with his ex-wife, Tawnney Caldwell, who was Roberts’ girlfriend. Roberts tried to kill, or at least seriously harm, Mr. Caldwell by luring him through false guise to a remote location. Mr. Caldwell managed to escape. Later, he wasn’t so fortunate. Mr. Caldwell was murdered after a family-counseling session.

Roberts argues, based on the Confrontation Clause, federal evidentiary rules, and the attorney-client privilege, that the district court improperly admitted evidence related to the earlier attack and other incriminating proof. He also raises two constitutional challenges to the interstate stalking statute under which he was convicted, 18 U.S.C. § 2261A, claiming that it exceeded congressional power under the Commerce Clause and that the counts of his conviction are multiplicitous. Because none of Roberts’ arguments have merit, we AFFIRM the district court’s judgment of conviction.