A self-confessed murderer known as The Serpent, who for decades evaded charges of drugging, robbing and murdering more than a dozen tourists in Europe and Asia, has been arrested in Nepal.Charles Sobhraj - who earned his nickname for his talent at disguise and escape - is suspected of killing at least 20 people in India, Thailand, Afghanistan, Turkey, Nepal, Iran and Hong Kong between 1972 and 1982.Already the subject of three books, he has signed a £10 million movie and book deal with French actor-producer Yves Renier.Sobhraj, 59, was picked up by police at a casino in Kathmandu earlier. He...