Her lively tale of a bear and a unicorn transcends Thanksgiving tragedyToday most Americans are still digesting their turkey dinner, and savoring this rare time of year when family near and far gather to catch up. But in a quiet Florida neighborhood, Jim and Muriel Sitton are alone. It shouldn’t be like this. A year ago, their world was shattered when an estranged member of their extended family showed up and was welcomed to the dinner table. When the meal was over, witnesses say, he pulled two pistols. A rampage ensued. When it was over, four lay dead, including Jim...