Robert L. Vesco, the fugitive financier who spent most of his life eluding American justice, might even have managed to die on the sly.Robert L. Vesco in 1974. He fled the United States in 1971 to avoid legal problems, and after a long odyssey avoiding American justice, friends say he died in November from lMr. Vesco, who was sentenced to a long prison term in Cuba in 1996 and was wanted in the United States for crimes ranging from securities fraud and drug trafficking to political bribery, died more than five months ago, on Nov. 23, from lung cancer, say people close to him. If so, it was never...