SAN QUENTIN, Calif. (AP) -- Convicted killer Stanley Tookie Williams, the Crips gang co-founder whose case stirred a national debate about capital punishment versus the possibility of redemption, was executed early Tuesday. Williams, 51, died at 12:35 a.m. Officials at San Quentin State Prison seemed to have trouble injecting the lethal mixture into his muscular arm. As they struggled to find a vein, Williams looked up repeatedly and appeared frustrated, shaking his head at supporters and other witnesses. "You doing that right?" it sounded as if he asked one of the men with a needle. After he was declared dead,...