AlHijjah 10, 1432, Nov 6, 2011, SPA -- Colombia's FARC rebels scorned the "happy laughter" of their foes and rejected a plea to demobilize after the killing of their leader Alfonso Cano gave President Juan Manuel Santos his biggest military victory, Reuters reported. Many Colombians hoped the death of the 63-year-old Marxist commander in a raid on his jungle hideout on Friday might would herald the beginning of the end of nearly five decades of civil war that have wracked the Andean nation. Santos specifically appealed for them to lay down arms. But no one expected the drug trade-funded group to give up quickly, and instead they vowed to carry on their fight. "This will not be the first time the oppressed and exploited in Colombia are mourning one of their greatest leaders," the FARC said late on Saturday in a statement on the www.anncol.info website, which often carries their messages. "Neither is it the first time they will replace them, with the courage and absolute conviction in victory. Peace in Colombia will not come from guerrilla demobilization but from the definitive abolition of the causes of the uprising." Starting as a Marxist-inspired peasant uprising seeking an end to sharp wealth inequality, the FARC has come to rely increasingly on the cocaine trade for financing Latin America's longest insurgency. -- SPA