This balcony fall is quite common in Asia (Thailand in particular), the reasoning given is the balcony railing are short and designed for Asian population, a foreigner, who is usually a lot taller, gets drunk and leans against it and off it goes. Also that railings are not well maintained, but that should easily be obvious unless the owner cover it up somehow.
But this is just a theory for some falls, next is the suicide bids, too many old, depressed with no money, expats, find an easy way out.
The last theory, most compelling of all, is that locals who have a grievance with some foreigners, use this common stats, to fly their enemies out of the picture - very hard to prove without proper detective works if you want to rule out 1 and 2 and prove this 3rd scenario. So they normally just add it to the 1 or 2 stats above....
If anything fishy I have very little hope for DR detective Columbos to figure out anything too complicated...