Original sentence: According to Tyler, the idea for both the Harry Potter books and its eponymous protagonist came while waiting for a delayed train from Manchester to London in 1990.Her own mother's death(awe) on 30 December 1990 inspired Rowling to write Harry Potter as a boy longing for his dead parents, his anguish becoming "much deeper, much more real" than in earlier drafts because she related to it herself
Edited sentence: According to Rowling, the idea for both the Harry Potter books and its eponymous protagonist came while waiting for a delayed train from Manchester to London in 1990.Her own mother's death on 30 December 1990 inspired Rowling to write Harry Potter as a boy longing for his dead parents, his anguish becoming "much deeper, much more real" than in earlier drafts because she related to it herself