Bogota - Assassins posing as journalists killed Colombia's top human rights lawyer on Saturday in a crime a left-wing political leader called an act of "infinite cowardice".
Police spokesmen said that Eduardo Umana Mendoza (50), a crusading defender of Colombia's underclass whose clients included trade unionists, jailed guerrillas, Indians and the families of the country's many "disappeared", was killed in his Bogota office.