One Monday in June, 79-year-old Charles Moore, a retired United Methodist minister, drove to Grand Saline, Tex., his childhood home town some 70 miles east of Dallas. He pulled into a strip mall parking lot, knelt down on a small piece of foam and doused himself with gasoline. Then, witnesses said, he set himself on fire. ... The Tyler Morning Telegraph obtained a copy of the suicide note from Grand Saline police. In it, Moore lamented past racism in Grand Saline and beyond. He called on the community to repent and said he was “giving my body to be burned,...