Who is Vince Debay from Soul Catcher and what is their importance?

Vince Debay is enrolled in the same anthropology class with Hobuhet at the University of Washington. He recognizes Hobuhet, but he thinks it strange that Hobuhet is dressed in traditional Native-American garb. Katsuk kills Debay in the forest with David's knife, an act that encourages David to make his first escape attempt.