It took the CIA more than 20 years to admit they gave Frank Olsen LSD. They will never admit that they intended to kill him.
And the family is suing
http://www.nytimes.com/2012/11/27/us/family-of-frank-olson-man-drugged-by-cia-plans-suit.html?_r=0
Not much detail out there about where the lawsuit stands now.
CIA has offed more than one citizen on US Soil.
William Colby another likely candidate.
“According to the lawsuit filed by Frank’s sons, Eric and Nils Olson, “The circumstances surrounding the death mirrored those detailed in an assassination manual that, upon information and belief, the CIA had drafted that same year.””