Memorial Sloan Kettering Cancer Center (MSKCC) today announced a major commitment from publisher, real estate developer, and MSKCC Board member Mortimer B. Zuckerman of $100 million from his charitable trust toward Memorial Sloan Kettering's new cancer research facility, including a 23-story laboratory structure that opens this month. Mr. Zuckerman's donation is the largest single commitment by an individual in Memorial Sloan Kettering's history.