Complex sentence: In 1981, Hugh Rhys Rankin claimed to have met Ethel Le Neve in 1930 in Australia and that n that occasion she told him that Crippen murdered his wife because she had syphilis.
Split into simpler sentences: In 1981, Hugh Rhys Rankin claimed to have met Ethel Le Neve in 1930 in Australia. On that occasion, she is said to have told him that Crippen murdered his wife because she had syphilis.