James Watson, co-discoverer of DNA's double helix, dead at 97

James D. Watson, the brilliant but controversial American biologist whose 1953 discovery of the structure of DNA, the molecule of heredity, ushered in the age of genetics and provided the foundation for the biotechnology revolution of the late 20th century, has died at the age of 97.

His death was confirmed by Cold Spring Harbor Laboratory on Long Island, where he worked for many years. The New York Times reported that Watson died this week at a hospice on Long Island.