Was JFK's lover Mary Meyer killed by the CIA?

One popular conspiracy theory holds that JFK's lover Mary Meyer was murdered in October 1964 because she "knew too much."

I don't believe it, for reasons Nina Burleigh, Meyer's biographer, explains very well in this piece for People magazine.

While the murder remains unsolved, Peter Janney, the son of one of the top CIA agents at the time, has written his…