premise: Lloyd Newton Morrisett, Jr. (born November 2, 1929) is an American experimental psychologist with a career in education, communications, and philanthropy. He is one of the founders of the Sesame Workshop, the organization famous for the creation of the children's television shows "Sesame Street" which was also co-created by him, "The Electric Company", and many others.
hypothesis: Lloyd Newton Morrisett, Jr. is dead
reason: That the text doesn't include his death date does not necessarily mean is he is still alive. 