Who killed Jon Snow's real dad?

Related questions

1. What does khaleesi say to Dragon?
2. Could Jon Snow be a Baratheon?
3. Is khaleesi a real word?
4. What does Dragon Queen mean?
5. Was the Mad King a dragon?
6. What's the meaning of khaleesi?
7. How Tyrion is a Targaryen?
8. Is Jon Snow khaleesi's brother?
9. Why is Daenerys Targaryen called khaleesi?
10. Why the mad king went mad?

Tags

1. #aerys
2. #father
3. #rhaegar
4. #demanding
5. #brandon
6. #disappeared
7. #eldest
8. #confronted
9. #return
10. #abducted
11. #brother
12. #lyanna
13. #targaryen
14. #rickard
15. #later