Warrell, who was a top oncologist at New York City's Memorial Sloan-Kettering Cancer Center before taking the helm at Genta, a biotech firm based in Berkeley Heights, N.
But Helm is best known for providing the vocals to such rock 'n' roll standards as "The Weight" and "The Night They Drove Old Dixie Down, " the latter a tale of a Confederate veteran sizing up his wasted land.