The Carolina Reaper Pepper could kill you if you happen to eat enough of them in a short amount of time but that would likely not happen because the Carolina Reaper is so hot that you would probably eat just one little bite of the Carolina Reaper and not want anymore for awhile.
You would have to eat 3 lbs of the Carolina Reaper Pepper in one or two days before it became a big enough problem to kill you.
Trust me when I say that the Carolina Reaper is hot and I mean it's really hot because I tried it once and only ate half of it before I threw the rest of the pepper away because I couldn't handle the heat.
I love hot peppers but the Carolina Reaper Pepper is too hot for me to eat and likely for you as well.
So I would not worry about the Carolina Reaper Killing you because you would probably not get enough of it down your throat to kill you.