Gerhardt Konig, accused of trying to kill his wife during a Hawaii cliffside hike, took the stand and claimed he acted in self-defense, alleging that his wife, Arielle Konig, was the aggressor and tried to push him off the edge first. The defense highlighted her alleged affair with a co-worker as a possible motive for the confrontation, while prosecutors maintain that Konig was the one who turned violent and allegedly attempted to kill his wife.