Triad of Deceit: No WHY's in Heaven

Who better than a psychologist would know how to trigger his wife to commit suicide by mixing a "black label warning drug" with another drug that would create a deadly combination? Who better than a psychologist would know how to cover his tracks by lying to family and friends that his wife died by swallowing a bottle of Lithium, then washing it down with Vodka, knowing that she didn't like alcohol? Who better than a psychologist would know how to lie to cover his tracks by having his nine and ten-year-old sons find her body after they came home from elementary school, even though he had called the victim's sister, a police reporter in Las Vegas, with the news of her death? Who better than a psychologist would know how to sexually manipulate his best friend's wife to have sex with the grieving widower, a day after his wife's death? And, who better than a neurologist would know that the combination of Lithium and alcohol would be so painful that it would be "a horrible, torturous way to die."