She describes how, toward the end of his life, “Robin was losing his mind and he was aware of it.” He was struggling with paranoia, anxiety, delusions, insomnia, and other symptoms both physical and mental, and for months, he and his wife could get no answers about what was happening to him. He was eventually diagnosed with Parkinson’s disease, but as his symptoms continued to worsen, he grew “weary” and it felt like they were both “drowning.” Then, ultimately, he took his own life. It was only after his death that an autopsy revealed Williams actually had Lewy body disease...