“Crime Stories with Nancy Grace” host Nancy Grace said the disappearance of Savannah Guthrie’s mother is a painful reminder of her own fiancé’s murder nearly 50 years ago. Grace’s fiancé, Keith Griffin, was shot and killed by a former co-worker in August 1979 — just months before their scheduled wedding — after the man had been fired by the company. “When my fiancé was murdered, I didn’t even want to say words. I felt like going out in the dark in the woods and just howling like an animal. I