On second thoughts, then I think he might be killed.
https://odysee.com/@DollarVigilante:b/Governments-are-the-Terrorists-VIDEO-1080p:b
In this video you can see Mcafee's now widow saying that he was not suicidal at all and Jeff Berwick make the case that it is nearly impossible to kill yourself in a prison. I would agree with these two arguments and that is why I changed my stance on the matter.