At the moment at least it seems that the internet is keeping that investigation alive, too many people know about it. Short of a very big distraction, most of them will keep looking into it.
All the stuff I've read, the convenient camera "malfunction" for his cell, one of the guards watching him
not being a corrections officer, the
broken neck bones, it just stinks to high hell. Last I heard his legal team was able to contest the "official" autopsy results based on the report of their own examiner.
And of course 8chan, which would normally be all over this, happens to be taken offline, and the FBI releases a report saying they are ready to treat conspiracy theorists as domestic terrorists, both just a few days before he died. How very convenient for certain people.
On top of this, John McAfee's drone footage proves that material, including computers, were removed from his island before the FBI availed themselves to finally raid it. He wasn't alone in this, yet his known accomplice and spouse has not been arrested.