Thomas Rex Hargrove was an American agricultural scientist and journalist, who was kidnapped in Colombia by FARC narco-guerillas in 1994. Throughout the 11 months he was captive, Hargrove secretly kept a diary which was published as Long March To Freedom: Tom Hargrove's Own Story of His Kidnapping by Colombian Narco-Guerrillas. The 2000 film Proof of Life starring Meg Ryan and Russell Crowe was heavily based on Hargrove and his ordeal.
In 1991, Hargrove began working for the International Center for Tropical Agriculture in Cali, Colombia. While driving to work on 23 September 1994, he encountered a roadblock set up by FARC guerrillas who kidnapped him at gunpoint. Hargrove was considered a high-value prisoner because the semi-literate guerrillas thought his CIAT identification badge was proof that he was actually working for the CIA. Hargrove was held captive by FARC-associated guerrillas in several different primitive campsites in the Colombian Andes for a total of 11 months. During this time he secretly kept a detailed diary on checkbooks and other scraps of paper he either had on him at the time of his kidnapping or that he scavenged. Being mostly illiterate and uneducated youths from farming backgrounds, his captors either did not comprehend or ignored the implications of Hargrove's meticulous documentation of his experience. FARC's reluctance to admit that Hargrove was not in fact a CIA operative combined with the difficulties communicating with the various FARC factions made negotiating his release difficult. Despite being illegal in Colombia, his family paid two separate ransoms which eventually resulted in his release. Hargrove's captors gave him 10,000 Colombian Pesos and marched him two days before releasing him in or near Los Nevados National Natural Park at 10:47am, August 22, 1995. Hargrove walked for several more hours before encountering a park ranger, who walked him over a mountain range to a village where he was surprised to learn that people knew his name and of his kidnapping. The villagers drove him back to his house in Cali, where he walked in on his surprised family. Hargrove compiled his notes and published them as Long March To Freedom in 2001. The book contains an transcription of his notes as well as scanned copies of some pages and his "proof of life" ransom Polaroid. The book was used as the premise for the Taylor Hackford movie Proof of Life, in which the Hargrove-inspired character was played by David Morse.
Hargrove wrote two other books: The Mysteries of Taal: A Philippine Volcano and Lake, Her Sea Life and Lost Towns about the Philippines and A Dragon Lives Forever: War and Rice in Vietnam's Mekong Delta 1969-1991, and Beyond about his experiences in Vietnam.