James Watson, Co-Discoverer Of DNA Double-Helix, Dies At 97
James D. Watson, whose co-discovery of the twisted-ladder structure of DNA in 1953 helped light the long fuse on a revolution in medicine, crimefighting, genealogy and ethics, has died, according to his former research lab. He was 97. The breakthrough — made when the brash, Chicago-born Watson was just 24 — turned him into a…