Hawaii doctor accused of trying to kill his wife takes the stand

Maui Dr. . Ghart Koig is now speaking out on his own behalf. >> Did you have a plan to kill your wife on the mountain that day.>> No. >> Did you try to throw her off a cliff. >> No.>> Did you try to stab her with syringes. >> No. >> When you hit her with the rock twice.Why did you do it. >> In self-defense. >> Did you plan this trip on Aahu to try and kill your wife.>> No. >> Were you trying to do something nice for her birthday. >> Yes.But prosecutors and Ariel say it was a deliberate, vengeful attack. Wit ...