"The Turk" (Spanish: el Turco; July 24, 1946 – March 13, 1986) was a Colombian guerrilla who co-founded and lead the 19th of April movement (M-19), founded in 1970.

He obtained his high school diploma from the Seminary of Santa Rosa, and entered the National University of Colombia in 1965 to study psychology.

Fayad entered the Colombian Communist Youth (JUCO) and there met Jaime Bateman Cayón, an influential figure in his life.

Seventeen years later, on January 31, 1991, M-19 leader Antonio Navarro returned the sword as part of the group's peace negotiations with the government.

He went to trial with 219 members of M-19 in a military hearing, and served as his own lawyer; his defense appears in The Wars of the Peace by Olga Behar, along with descriptions of the torture endured by him and his companions.