I want to make a script fire on death but not when someone resets?

Basically I'm making a money drop system. However I don't want people to abuse it by resetting so many times, I only want the money to drop when someone kills them.

I tried making it so that you cant reset at all, but I need to rename the humanoid and I used the humanoid in at least 30 other scripts so that's a big issue, and then I also had the idea of adding a string value into the player and when someone deals damage to someone else, that value changes, and the money drop system will only fire if that value isn't blank. Though I'd need to rewrite a lot of scripts... so is there any other effective way to do this?