When Jim Tyrer first appeared on a Pro Football Hall of Fame ballot in the early 1980s after completing an impressive 14-year career, the Kansas City Chiefs offensive lineman looked like a sure bet to land in Canton. Tyrer, though, never made it into the Hall, and his name disappeared from the ballot for more than 40 years. That's because, in the early morning hours of Sept. 15, 1980, in an upstairs bedroom of a two-story ranch house, while his children were fast asleep, Tyrer took a .38-caliber pistol and shot his wife to death, and then turned the gun...