Update on CIA scientist who died during CIA's MKUltra program

Dr Frank Olson , a biological warfare scientist, was dosed with LSD at a meeting and died nine days later after falling out of his hotel room in New York City .

A newly declassified account from Dr Olson's boss and former head of the Special Operations Division of the Army Chemical Corps has provided a firsthand account of the scientist's final moments of his life.

Dr Olson became paranoid, barely ate and even disappeared into the night to toss out his wallet, identification badge and money cause he be believed Ruwet asked him to.

The CIA 's MkUltra program, conducted from 1953 to 1964 , aimed at developing procedures and drugs that could be used during interrogations, weakening individuals and forcing confessions through.

Dr Olson's family believes that he had 'grown uncomfortable with the nature of his work, showed signs of being a security risk, and then was made unstable when drugged with LSD at an offsite business meeting intended to test his trustworthiness' The New York District Attorney's Office reopened its file on Olson 's death in 1996 , eventually changing the cause of death from 'suicide' to 'unknown'.