NFL wildman Lyle Alzado was one of the first athletes to acknowledge that his on-field accomplishments were fueled by performance-enhancing drugs. In his 2009 book, "Spiral of Denial: Muscle Doping in American Football," Matt Chaney writes about leaving his home in Missouri to chase the ghost of Alzado, who died in 1992 of brain cancer, through the streets and alley of Alzado's native Brooklyn.Here's an excerpt:"Leaving...