The Nobel Prize winner felt ostracised by the scientific community over his comments on race and intelligence. 

​The Nobel Prize winner felt ostracised by the scientific community over his comments on race and intelligence.  

Robert James Purkiss faces extradition over allegations he murdered Agnes Manjiru. 

​Robert James Purkiss faces extradition over allegations he murdered Agnes Manjiru.  

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.