Bogota - Mr Ricardo Orozco (45), vice president of the Colombian Hospital Workers' Union, was shot dead near the Caribbean city of Barranquilla yesterday, police announced. In other violence at least 35 people were killed in clashes between FARC guerrillas and right-wing paramilitary groups in a violence-torn area in northern Colombia, officials said. Police said 15 guerrillas and some 20 paramilitaries died.