Joseph A. Colosi, 70, a research economist who worked for the CIA’s Directorate of Intelligence from 1978 to 2008, died Jan. 2 at Sunrise assisted-living facility in Reston. He had dementia.
Dr. Colosi, a Manassas resident, volunteered at Catholic churches in Northern Virginia.
Joseph Anthony Colosi was a native of Niagara Falls, N.Y., and a 1962 graduate of Georgetown University’s School of Foreign Service.
He received a master’s degree in international relations from the University of Chicago in 1964 and a doctorate in economics from the University of Wisconsin in 1977.
In the mid-1960s, he served with the Peace Corps teaching English in the West African country of Guinea.
His marriage to Nancy Woodcock Colosi ended in divorce. A son from that marriage, Anthony Colosi, died in 2006.
Survivors include his wife of two years, Synthia Vega Montalvo of Sterling; two sons from his first marriage, John Colosi of Dulles and Peter Colosi of San Francisco; a sister; and a brother.