Book excerpt: Dr Anthony Pignataro was a cosmetic surgeon and a famed medical researcher whose flashy red Lamborghini and flamboyant lifestyle in western New York state suggested a highly successful career. But appearances, as this shocking insider account of Pignataro's tailspin from physician to prisoner proves, can be deceiving - and, for the doctor's wife, very nearly deadly. No one was safe if they got in his way. With scalpel, drugs and arsenic, he betrayed every oath a physician makes - until his own schemes backfired. Now the motivations of the classic sociopath are plumbed with chilling accuracy by Ann Rule, along with other shocking true cases, where even slow, deliberate murder is not seen for what it truly is: pure evil.