tl;dw: Johnson and Johnson is using a legal loophole to extend a patent on a life-saving drug, preventing generics from being made. Scientists estimate this will lead to 6 million more people dying of tuberculosis over the next four years, because they cannot afford the high-priced name-brand drug.
The truly bleak way to look at this is to just ponder how many people have died over the entirety of the original patent.
Being able to patent medicine is fucking criminal in and of itself end of story.
Edit: Looks like the original patent for bedaquiline was from 2011. Using the same math but rounding down leaves it at like 11 million deaths.