A Chilean court said U.S. military intelligence services played a key role that led to the 1973 killings of two Americans in Chile in a case that inspired the Oscar-winning film "Missing."

A court ruling released late Monday said former U.S. Navy Capt. Ray E. Davis gave information to Chilean officials about journalist Charles Horman and student Frank Teruggi that led to their arrest and execution just days after the 1973 coup that brought Gen. Augusto Pinochet to power.

"The military intelligence services of the United States had a fundamental role in the creation of the murders of the two American citizens in 1973, providing Chilean military officers with the information that led to their deaths," the ruling by Judge Jorge Zepeda said.

Zepeda also upheld the decision to charge retired Chilean army Col. Pedro Espinoza with the murders, and Rafael Gonzalez, a former civilian counterintelligence agent, as an accomplice in Horman's murder. The two Chileans and Davis had been indicted in 2011.

Davis commanded the U.S. Military Mission in Chile at the time of the Sept. 11, 1973, American-backed coup that ousted the democratically elected government of leftist President Salvador Allende. Davis was investigating Americans in Chile as part of a series of covert intelligence operations run out of the U.S. Embassy targeting those considered to be subversives or radicals, according to the judge's investigation.