There does appear to be rampant corruption in the government there. The press does seem interested in hyping the story, especially by portraying McAfee as a wacko. When I read the Jeff Wise story "Secrets, Schemes, and Lots of Guns: Inside John McAfee’s Heart of Darkness" recently, I was struck at how sensationalized it was, especially the part where he strains hard to make 8 shotguns, 2 pistols, and some ammo into "a small armory's worth of firearms", and "Vexingly for the police, all of this was actually legal." McAfee writing that Jeff Wise has some ax to grind, therefore, rings true to me.
I think the Russian Roulette trick involved palming the bullet, and was to make the point that things are not always as they first appear. Of course for anyone who's made up their mind that he's crazy, it's just simply more fodder to reinforce their beliefs.
The "Watchfulness" post does seem over the top, yet even that could be plausible. It's a shame -- the guy has been tried in the press already, so people assume he's crazy and a murderer.