Whether a person would die or not upon falling from a certain height is not really an exact science, so you would have to be the judge yourself. Do be mindful that gravity is not a very reliable method, and the result would heavily depend on the way that you land. It's possible to die from a 2 storeys fall if you land on your head, and it's also possible to survive a 8 storeys fall if you land on your legs. So, very unpredictable, and it would be hard to control the way you are falling since you would likely be panicking on the way down.