Orlando Letelier is assassinated in Washington, D.C., at the order of Augusto Pinochet.

Marcos Orlando Letelier del Solar was a Chilean economist, politician, and diplomat during the presidency of Salvador Allende. A refugee from the military dictatorship of General Augusto Pinochet, Letelier accepted several academic positions in Washington D.C. after his exile from Chile. In 1976, agents of Dirección de Inteligencia Nacional (DINA), the Pinochet regime's secret police, assassinated Letelier in Washington in a car bombing. The agents had been working in collaboration with members of the Coordination of United Revolutionary Organizations, an anti-Castro militant group.

On 21 September 1976, Orlando Letelier, a leading opponent of Chilean dictator Augusto Pinochet, was assassinated by car bombing, in Washington, D.C. Letelier, who was living in exile in the United States, was killed along with his colleague Ronni Karpen Moffitt, who was in the car with her husband Michael. The assassination was carried out by agents of the Chilean secret police (DINA), and was one among many carried out as part of Operation Condor. Declassified U.S. intelligence documents confirm that Pinochet directly ordered the killing.

Washington, D.C., officially the District of Columbia and commonly known as simply Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with Maryland to its north and east. It was named after George Washington, the first president of the United States. The district is named for Columbia, the female personification of the nation.

Augusto José Ramón Pinochet Ugarte was a Chilean military officer and politician who was the dictator of Chile from 1973 to 1990. From 1973 to 1981, he was the leader of the military junta, which in 1974 declared him President of the Republic and thus the dictator of Chile; in 1980, a referendum approved a new constitution confirming him in the office, after which he served as de jure president from 1981 to 1990. His time in office remains the longest of any Chilean ruler.