Fabio Vásquez Castaño was a Colombia

Colombia

Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

n rebel and revolutionary

Revolutionary

A revolutionary is a person who either actively participates in, or advocates revolution. Also, when used as an adjective, the term revolutionary refers to something that has a major, sudden impact on society or on some aspect of human endeavor.-Definition:...

 who was trained by Fidel Castro

Fidel Castro

Fidel Alejandro Castro Ruz is a Cuban revolutionary and politician, having held the position of Prime Minister of Cuba from 1959 to 1976, and then President from 1976 to 2008. He also served as the First Secretary of the Communist Party of Cuba from the party's foundation in 1961 until 2011...

 regime during the 1960s. He was one of the original founders of the Colombian guerrilla group ELN

National Liberation Army (Colombia)

National Liberation Army is a revolutionary, avowed Marxist guerrilla group that has been operating in several regions of Colombia since 1964....

. The ELN movement began in 1964 when a group of students, inspired by Che Guevara

Che Guevara

Ernesto "Che" Guevara , commonly known as el Che or simply Che, was an Argentine Marxist revolutionary, physician, author, intellectual, guerrilla leader, diplomat and military theorist...

 and led by Fabio Vásquez, returned from their training in Cuba

Cuba

The Republic of Cuba is an island nation in the Caribbean. The nation of Cuba consists of the main island of Cuba, the Isla de la Juventud, and several archipelagos. Havana is the largest city in Cuba and the country's capital. Santiago de Cuba is the second largest city...

. Following the death of Vásquez, the ELN was led by a series of priests until the emergence of its present leader, Antonio García.