Would have been much better than going through the US/Canada border which has a full data sharing agreement between CBSA and US CBP/ICE.
(note: this is a stupid, humorous theoretical, not real advice on how to flee to avoid prosecution)
also, a note, any airline flight that crosses US airspace submits its passenger manifest to US CBP/ICE/DHS electronically as a database transfer, this has been a thing for 20+ years as a result of 9/11 and the PATRIOT act.
Though you'd have thought someone committing financial crimes in the crypto industry might have more scope for planning their offramp
One would think.
q1: Surely walking from one country to another needs paperwork of some kind?
q2: And even then, don't they check passport for port of entry? Like how and when did you get to mexico if you want to leave it?
2. Nope to enter mexico by foot in certain border tourist cities, of course USA cbp/ice requires full id for anyone coming back.
Maybe, that was his 'last thing'
whatever his friend did is working so far. still at large.