In Bowie v. State, 85 Wis. 2d 549, 554, 271 N.W.2d 110 (1978), the Court held that evidence of threats made to a witness is inadmissible unless the threats can be tied directly to the defendant. In Bowie, the court noted the inflammatory nature and inherent prejudice of evidence of threats which have not been linked to the defendant. See Bowie, 85 Wis. 2d at 553-54.