Michael Vernon Townley is an American-born operative who became a key agent of Chile’s secret police, the Dirección de Inteligencia Nacional (DINA), during the dictatorship of Augusto Pinochet. He played a central role in several high-profile political assassinations and covert operations targeting opponents of the regime.

Townley is most notably linked to the 1976 car-bomb assassination of Orlando Letelier in Washington, D.C., for which he pleaded guilty in the United States and served about five years in prison. As part of a plea deal, he received immunity from further prosecution and entered the U.S. Witness Protection Program, where he has remained for decades.

He was also responsible for the 1974 assassination of Chilean General Carlos Prats and his wife in Buenos Aires, and was implicated in other international attacks, including a 1975 assassination attempt on politician Bernardo Leighton in Rome. In addition, Townley worked on producing chemical weapons, including toxins such as sarin, used against political enemies.

Throughout investigations and later confessions, Townley described his role as a leading international assassin for DINA, acting under orders from its chief, Manuel Contreras. His activities were tied to broader transnational repression efforts, including coordination with foreign operatives and anti-Castro groups.

Despite multiple convictions and ongoing investigations in several countries, Townley has avoided further prosecution due to his protected witness status. His full confessions, published in 2023, revealed the extent of his involvement in assassinations, torture, and chemical weapons development during the Pinochet era.