Condemned murderer Stanley Tookie Williams, an ex-gang leader who became an anti-gang crusader in prison, is a "cold-blooded killer'' who disavows "any responsibility for the brutal, destructive and murderous acts he committed'' and deserves to be executed Dec. 13, Los Angeles prosecutors said Thursday. Williams and his defenders say he is not the man he was when he was arrested for four killings in the Los Angeles area in 1979, and they are hoping that Gov. Arnold Schwarzenegger will commute his sentence to life without parole. Williams has written nine books for children and youths since 1993, has taped anti-violence...