Question: At Ethan's funeral at the end of the movie, his tombstone was seen. And there were names: "James W.", "Dorothy M." and "Ethan H." Who are James and Dorothy? These are definitely not Ethan's parents' names. I remember from the first movie "A Dog's Purpose" that Ethan's parents' names are Jim and Elizabeth. Then who? And what W, M and H next to the names refer to?
Answer: Jim is often a nickname for James. But I thought Ethan's parents got divorced, so perhaps Dorothy was his 2nd wife. Although there's no reference to that name in either film. I haven't throughly checked out of the books to see if they talk about if Ethan had a stepmom and what her name would be. The letter after the first names are their middle initials.
Answer: Just because they only caught her doesn't mean that they didn't get anyone else. She was there at the party so she may have been able to tell the police who all was there that night or give descriptions of people.