Unsolved November 28, 1953 Suspicious Death

Frank Olson

Army biochemist Frank Olson, 43, died on November 28, 1953, after falling from a window of the Hotel Statler in New York, nine days after CIA colleagues gave him LSD without his knowledge. The death was treated as a suicide. A 1994 forensic re-examination raised the possibility of homicide, but prosecutors brought no charges and a 2012 family lawsuit was dismissed.

Status
Unsolved
Date
November 28, 1953
Age
43
Gender
Male
Decade
1950s
Where the case stands
  1. OpenUnsolved
  2. Partly resolved
  3. Charges or trial
  4. Closed

No one has been charged and the case remains open.

Timeline to scale
Each dot is a dated event below; the distance between dots is elapsed time. The darker dot marks the incident.
July 17, 1910: Frank Olson is born.November 19, 1953: Olson is given LSD without his knowledge at a retreat with CIA colleagues.November 28, 1953: Olson falls from a window of the Hotel Statler in New York at about 2 a.m. and dies.1975: The Rockefeller Commission report discloses the LSD experiment; the family learns the circumstances.1976: Congress approves a $750,000 settlement for the Olson family.1994: Olson's body is exhumed and examined by a team led by James Starrs.1996: The Manhattan District Attorney's office opens an inquiry, which ends without grand jury proceedings.November 28, 2012: Olson's sons file a federal lawsuit against the United States.July 17, 2013: Judge James Boasberg dismisses the lawsuit.191019532013202673 years since the incident
New York
51 cases in New York. Select any state to browse its cases.
AlaskaAKMaineMEWisconsinWIVermontVTNew HampshireNHWashingtonWAIdahoIDMontanaMTNorth DakotaNDMinnesotaMNIllinoisILMichiganMINew YorkNYMassachusettsMAOregonORNevadaNVWyomingWYSouth DakotaSDIowaIAIndianaINOhioOHPennsylvaniaPANew JerseyNJConnecticutCTRhode IslandRICaliforniaCAUtahUTColoradoCONebraskaNEMissouriMOKentuckyKYWest VirginiaWVVirginiaVAMarylandMDDelawareDEArizonaAZNew MexicoNMKansasKSArkansasARTennesseeTNNorth CarolinaNCSouth CarolinaSCDistrict of ColumbiaDCOklahomaOKLouisianaLAMississippiMSAlabamaALGeorgiaGAHawaiiHITexasTXFloridaFL

Frank Olson, born July 17, 1910, was a scientist who worked on biological weapons at Fort Detrick, Maryland, and with the Central Intelligence Agency. According to the facts recited in a later federal court opinion, a CIA employee put LSD into a bottle of Cointreau from which Olson drank. He had not been told. The dosing took place on November 19, 1953.

Days later Olson was in New York, staying at the Hotel Statler in Manhattan, where he shared a room with CIA employee Robert Lashbrook. At about 2 a.m. on November 28, 1953, Olson went through the window of the room and fell to the street. He died shortly afterward. The death was treated as a suicide.

The LSD experiment became public in 1975, when the Rockefeller Commission's report on CIA activities led to the disclosure that CIA personnel had been given drugs in covert tests, including Olson nine days before his death. The government acknowledged the drugging, and Congress passed a private law in 1976 under which the family received $750,000, or $187,500 for each of four family members, in full settlement of claims arising from the death.

Olson's sons continued to doubt the official account. In 1994 they had their father's body exhumed and examined by a team led by forensic scientist James Starrs. According to published accounts of the findings, the team reported an injury to the head that most of its members believed had been inflicted before the fall, and Starrs described the evidence as suggestive of homicide. The Manhattan District Attorney's office opened an inquiry in 1996 but concluded that there was not enough evidence to take the matter to a grand jury.

On November 28, 2012, Eric and Nils Olson sued the United States in federal court in Washington, alleging that CIA personnel had killed their father and concealed it. On July 17, 2013, U.S. District Judge James Boasberg dismissed the case, holding that the claims were filed too late and were barred by the 1976 settlement. According to Courthouse News Service, the judge observed that the public record supported many of the family's factual allegations, but he did not rule on how Olson died.

No one has ever been charged in connection with Frank Olson's death, and no court or official body has determined that it was a homicide.

CIAMKUltrahistoricalconspiracy
  1. July 17, 1910
    Frank Olson is born.
  2. November 19, 1953
    Olson is given LSD without his knowledge at a retreat with CIA colleagues.
  3. November 28, 1953
    Olson falls from a window of the Hotel Statler in New York at about 2 a.m. and dies.
  4. 1975
    The Rockefeller Commission report discloses the LSD experiment; the family learns the circumstances.
  5. 1976
    Congress approves a $750,000 settlement for the Olson family.
  6. 1994
    Olson's body is exhumed and examined by a team led by James Starrs.
  7. 1996
    The Manhattan District Attorney's office opens an inquiry, which ends without grand jury proceedings.
  8. November 28, 2012
    Olson's sons file a federal lawsuit against the United States.
  9. July 17, 2013
    Judge James Boasberg dismisses the lawsuit.

Have information about this case?

Cold cases are solved when someone comes forward. Even a detail that seems minor can matter. Contact law enforcement through one of these channels:

  • FBI Tips (tips.fbi.gov): submit a tip online to the Federal Bureau of Investigation
  • FBI tip line: 1-800-CALL-FBI (1-800-225-5324)
  • The police force or sheriff's office responsible for New York City

Tips can usually be given anonymously. ColdCaseIndex does not collect tips. To report an error on this page, email info@coldcaseindex.com.

Entry last updated November 4, 2026.

Cite this entry

Permalink: https://coldcaseindex.com/cases/frank-olson/. This entry was last updated on November 4, 2026; cite that date as the publication date. The primary sources listed above should be cited for the underlying facts.

APA
ColdCaseIndex. (2026, November 4). Frank Olson. https://coldcaseindex.com/cases/frank-olson/
MLA
“Frank Olson.” ColdCaseIndex, 4 Nov. 2026, coldcaseindex.com/cases/frank-olson/.
Wikipedia
{{cite web |url=https://coldcaseindex.com/cases/frank-olson/ |title=Frank Olson |website=ColdCaseIndex |date=2026-11-04 |access-date=}}