SCOTT ANDERS, another white youth from a lower-middle-class family, was 15 years old when he was arrested for killing his 36-year-old father. On the afternoon of the homicide Scott confided in some friends who came to the Anders home that “it had been building up,” and said, “One day he's gonna come after me and I'm actually gonna kill him.” (When Mr. Anders got “real buzzed” on marijuana and cocaine, he would yell and threaten his son, and he had been talking about killing them both for some time.) Later that day Mr. Anders smoked marijuana, argued with his son, and “cussed” at him. Scott left the house for a while, telling his father that he would be back. When he returned, ...