Welcome, Benny.

No, you're not missing anything obvious. In fact, your question may quite possibly be the one most frequently asked first by new members.

We've had many discussions about this in the past, and as yet no one has come up with a scenario that fits all of the facts.

Try doing a search, using terms like "Tahoe", "Assassins", "Drapes", "Fredo", etc.

Unless we ever get the opportunity to lock FFC in a room somewhere and ask him, this will probably remain a huge plot hole forever.