A man was shot to death by Miami police, and another man is fighting for his life after his face was half eaten by a naked man, police said. The horror began about 2 p.m. Saturday when of gunshots were heard on an off-ramp of the MacArthur Causeway. According to police sources, a roadside-assistance truck driver saw a naked man chewing on another man’s face and shouted on his loudspeaker for him to back away. A woman also saw the incident and flagged down a police officer. The officer, who has not been identified, approached and, seeing what was happening,...