Human rights activists say the Feb. 17 death is part of a deadly phenomenon called "false positives" in which the armed forces allegedly kill civilians, usually peasants or unemployed youths, and brand them as leftist guerrillas.
A macabre facet of a general increase in "extrajudicial killings" by the military, "false positives" are a result of intense pressure to show progress in Colombia's U.S.-funded war against leftist insurgents, the activists say.
Ricardo Sanchez came to the United States from his native Mexico, illegally, when he was nine....
