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Casimiro Emérito Rosa Teles Jordão Monteiro (Goa, 28 December 1920 - Richards Bay, 25 January 1993),  also known as Agente Monteiro, was a notorious figure in Portuguese Goa. As a PIDE agent, Monteiro carried out the high-profile assassinations of Humberto Delgado, opposition leader to Salazar's Portuguese dictatorship, and Eduardo Mondlane, leader of FRELIMO.
Monteiro was born in Portuguese Goa to a white Portuguese father and a native Goan mother, an aguadeira from the city of Ponda. He lived in Portugal for sometime before joining General Franco's army in the Spanish Civil War.
Goa-Portuguese Colonial Era
In the 1950s, Monteiro joined the Portuguese Colonial Police in Goa, where he interrogated Goan liberation movement activists. Much of the brutal torture/ interrogations took place at Valpoi Police Station. There were several local theatro songs of the dreaded Agent Monteiro.
After Goa's annexation by the Indian Army in 1961, Monteiro was recruited by the Polícia Internacional e de Defesa do Estado (PIDE), the dreaded Portuguese Secret Service. In 1965, he assassinated General Humberto Delgado in Spain. General Delgado was the Opposition Leader against the Salazar Dictatorship. Monteiro, who had shot Delgado and strangled his secretary, was found guilty by the Spanish courts and was sentenced to 19 years in absentia.
In the late 1960s, Monteiro went to Portuguese Mozambique (as a PIDE agent) to fight FRELIMO (Frente de Libertação de Moçambique), a movement fighting for independence against the Portuguese Colonial Government. Most of the Frelimo fighters were based in Tanzania. Monteiro crossed into Tanzania, and using a parcel bomb assassinated Eduardo Mondlane, the founder Leader of FRELIMO.
He returned to Portugal, but after the 1974 Carnation Revolution, which overthrew the Portuguese dictatorship, Monteiro took refuge in the South African Embassy. He later moved to South Africa, where he spent the remainder of his life under the alias 'José Fernandez'. Almost blind and destitute (helped by the South African police) he died in 1993, at Richards Bay, South Africa.