I'm assuming that the vast majority of commenters are from the US, Canada, and western European countries where the rule of law is well understood and (mostly) enforced in a non-arbitrary manner. That's apt to color your reaction to a story such as this.
While I don't know the facts in this particular case, it is often true in many Central and South American countries (and Caribbean islands) that the rule of law can be enforced arbitrarily, and sometimes in response to the desire to acquire the wealth of an accused person. Presumption of innocence or even actual innocence does not matter in such cases; individuals have been known to disappear for years into Byzantine court systems, or found guilty without what we would consider to be sufficient evidence of guilt. I have a friend whose college roommate has been held as a political prisoner for well over a decade in a South American country; my sisters have both had to "pay tickets" to Mexican police to keep their passports from being impounded. So I don't take flight from authorities as an admission of guilt; if McAfee knows or suspects he's being railroaded, that's probably the wise choice.
For all I know, he may be guilty, but don't take his actions as an admission.