I don't think it is. Fictional stories often have names like 'Run Rabbit Run' to capture the imagination. Chances are it's not based on something that happened in reality.
Well, to know if it's a true story, you'd have to look into the background and any statements from the creator. Maybe it's inspired by real life but not a direct account.
Yes, it is. 'Run Boy Run' is based on the real-life experiences of a particular individual or group, which gave the story its foundation and authenticity.
It's hard to say for sure. Sometimes movies or stories draw inspiration from real events but are fictionalized. Maybe there are elements of truth, but it could also be mostly made up.