Doctor accused of trying to kill wife on hike: What we know

Hawaii doctor Gerhardt Konig took his wife, Arielle, hiking on Oahu to celebrate her 36th birthday when she says he shoved her toward a cliff, tried to inject her with a syringe and repeatedly hit her in the head with a rock. Gerhardt testified that Arielle attacked him and tried to push him off the cliff. CNN’s Jean Casarez reports as Gerhardt faces a second-degree attempted murder charge.