Share 'Man convicted in grad student's rape, torture'

NEW YORK (AP) -- An ex-convict was found guilty Tuesday in the rape and torture of a Columbia University graduate student who survived 19 hours of nightmarish sadism in which he scalded her with boiling water and attempted to blind her before trying to burn her to death.Robert Williams was convicted of attempted murder, rape, kidnapping, arson and other charges in the attack, which was so prolon…