There is more to flight payment than just the aircraft. For instance, the pilot must also hold a Commercial Certificate.
“Salomon Melgen” does not appear in the FAA airman registration database as a registered pilot, so he must have hired pilots.
even drug testing
i really doubt he operates under 135 - looking at the flights, he mostly goes to the dominican republic and island hops - i doubt those are charter flights - he owns a ‘villa’ near the kiddie ho house
if he is under 91, he needs an exemption to accept money to haul menendez or anyone to diddle kiddie hoz