I don't think so. Usually, movies like 'Set It Off' are fictional works of imagination, even if they might touch on relatable or realistic aspects. Checking multiple reliable sources beyond Wikipedia would give a clearer picture.
I'm not sure. You'd have to look into reliable sources to confirm. Maybe some elements are inspired by real events, but it might not be a direct retelling.
Not really. 'Set It Off' is more of a fictional creation. While it might draw on common themes or situations, it doesn't have a direct basis in a specific true story as documented on Wikipedia.