The latest episode of Manhattan explores the controversial possibility that Jean Tatlock, the daughter of a notable professor, may have been murdered by intelligence agents who were working for Manhattan Project security. The idea of this could be seen as a crazy conspiracy theory by some, but investigative authors Kai Bird and Martin Sherwin have revealed their is potentially more to it. Tatlock may have even been killed by Boris Pash, head of the Counterintelligence Branch of the Western Defense Command, responsible for assassinations, kidnappings and other “special operations,” during the war. However, there is not enough evidence to say for sure whether Tatlock’s death was a suicide or a murder.
https://blog.nuclearsecrecy.com/2015/12/11/the-curious-death-of-oppenheimers-mistress/