My guess: He began begging the Americans for his life -- claimed he would come clean with the Americans about certain unresolved mysteries of his regime.
When the chips were down he couldn't/wouldn't really deliver anything useful. So off he went.
He could already be dead you guys know. They are going to hang him, then get security forces out, then announce it.
When the chips were down he couldn't/wouldn't really deliver anything useful. So off he went.Or, he gave what we wanted, and we said, "Thanks."
And off he went, muttering, "Boy, that's some gratitude..."