If you actually know people in law enforcement who run investigations then you know that criminal suspects go on the run all the time. It’s common for them to stay at large for a month or two. It isn’t hard to evade detection within the country if you and those around you have sufficient resources to stay low and not be tempted to snitch. Harder to cross borders and actually escape. Everybody has to pop their head up eventually. Or they get too comfortable after a while. It’s then that they’re caught.
This guy is probably dead though if he’s messing with swamps and sh!t.