Original sentence: Lord Lucan claimed to a family friend whom he visited much later the same night, that he had been walking past the house, had seen someone struggling with Lady Lucan and had entered the house to assist her
Edited sentence: Lord Lucan claimed, somewhat implausibly, to a family friend whom he visited much later the same night, that he had been walking past the house, had seen someone struggling with Lady Lucan and had entered the house to assist her