That’s what I’m thinking.
A Citation is a big enough jet to (typically) require two pilots.
Something would have to take out both.
Or perhaps they both had the fish.
Some Citations only need one pilot.
I remember, I had the lasagna
“A Citation is a big enough jet to (typically) require two pilots.”
With passengers it may be required to have two pilots, but there’s a pilot with a YouTube Channel called “CitationMax”, and he regularly flies that aircraft solo. With all the tech in the aircraft now, there must have been a warning if there were issues with the cabin pressure. Any pilot worth his salt would have descended below 18K feet where cabin pressure wouldn’t be an issue.
Citation is certified for single-pilot operation.