The sun was so bright on November 15 that the priest had to squint to read his prepared remarks. A cassock peeked from beneath his tan trench coat, and the gentle breeze called attention to his red, sternum-length beard. He spoke to a small gaggle of journalists gathered in the driveway of an Arlington church and hurtled accusations of “spiritual malpractice, theological atrocity, and a failure to love.”“There was a demand for Steven Nelson’s head on a platter,” Jeff Hood said, casting church leaders in the role of Herodias, the adulterous princess of the Christian gospels who demanded, and was granted, John the Baptist’s death. “That ain’t got nothin’ to do with Jesus.” About a half dozen supporters stood behind the priest holding a banner…