evening in February of 1992, a newly married man who lived in a quiet, peaceful neighborhood in Minnesota returned home from work. When he walked inside, he saw his young son was working on some homework at the table, and his 8-month-old baby daughter was crying in her playpen, but the man's wife was nowhere to be found. He asked his son if he had seen his mother, and the boy said "no." So, the husband began walking around the house looking for his wife and calling out to her. But he couldn't find her, and she never called back. Eventually, during his search, the man reached the master...