Multiple scientists tragically received fatal doses of radiation in freak accidents when handling the so-called Demon Core. Was it karma for our dropping the atomic bomb? io9 writes:
Ever heard of The Demon Core? It was named by Los Alamos scientists — who are generally not a superstitious lot — after it claimed multiple lives, in a series of strange and horrible accidents. Discover a legend of science… that’s worthy of a horror movie.
The Demon Core was a hunk of plutonium that was being used to refine the atomic bomb, just after it had been used in Japan. One of the first reactions tests was conducted, unofficially and without other scientists present, by a gifted 24-year-old physicist named Harry Daghlian. He had built up walls around the core, monitoring it all the while, and then placed a brick on top of the walls. The reaction started cranking up to critical levels, and Daglian hurried to withdraw the brick.