Could be he was spotted in Toronto.
https://torontosun.com/news/world/did-gabby-petitos-missing-fiance-escape-to-toronto
Wow who would have thought it’s cheaper to fly round trip.from.Toronto to Moscow than inside the USA to Hawaii and back. That show so how much taxes and fees the fedzilla is adding to airfares. I just googled flights from YYZ to SVO cheapest is under $600 that’s crazy.
Russia has no extradition with the USA you can get from Toronto to Moscow if.France is not looking for you while you change planes.
If he was smart he would have gone south to Mexico by land to Mexico City then hop to Moscow direct no stops MEX to SVO under a grand “round trip” you have to have a round trip ticket or Russia will not let you leave the airport.