Benjamin Adams McCoy died from an apparent gunshot wound to the head. The woman was found surrounded by drugs, but showed no signs of physical violence at the man's home in Tres Ríos.
The incident occurred several days into a U.S. government shutdown and the security scare shattered the previous focus on Washington's political gridlock.
Clancy's biggest hits featured the character Jack Ryan, a CIA analyst whose smarts and bravery stand out among the lesser lights of the government around him.
An Iranian diplomat with Iran's U.N. delegation, Khodadad Seifi, responded swiftly, warning that "the Israeli prime minister had better not even think about attacking Iran, let alone planning for that."
President Barack Obama accused conservatives in the House of Representatives of waging an "ideological crusade" by making government funding conditional on gutting his health reform law.