Hey, Suz, if you find a link for that, would you please throw it my way? Thanks!
Sorry about the source, but here you go: http://www.huffingtonpost.com/2012/04/19/mary-pinchot-meyer-jfk-mistress-assassinated_n_1434191.html
Just google the names Cord Meyer and Mary Pinchot Meyer. Mary was a long time friend of JFK. When Jackie was out of town Mary was considered the hostess at the JFK soirees. She was married to Cord Meyer of the CIA and her sister, IIRC, was married to one of the WaPo owners. VERY connected.
Mary was murdered about a year after JFK’s death. DC was shocked when that happened because she was generally considered to have been JFK’s girlfriend. They tried to hang the murder charge on an unemployed black guy - sort of like the Chandra Levy maneuver. Supposedly when her sister went to her house there was a CIA person there and her diary supposedly disappeared.