Flight 924 story getting murky

The story of Flight 924 is beginning to unfold, and it isn't pretty. That's the flight where the air marshalls killed a psychiatric patient who was behaving strangely. It turns out that several days earlier, an Egyptian man was stopped at JFK airport and found to have shoes that tested for explosives. Notwithstanding that, he was let go. Later the FBI put out a nationwide alert to arrest the man. It was this alert that may have made the air marshalls somewhat edgy.

Furthermore, the story told by the air marshalls, that the man was running through the aircraft screaming that he had a bomb is refuted by the passengers, who claim the man didn't say anything at all.

Finally, Randi Rhodes is saying on Air America Radio that one of the air marshalls involved was a former prison guard who was fired for inappropriate behavior on the job. I've tried to Google that story and haven't found any confirmation, so I don't know where Randi learned that.

Of course, there may have been strange behavior on the part of the victim that justified the shooting, but the whole picture that's unfolding doesn't look anywhere near as good as the original reports suggested. It's now beginning to look as though this might be a case of trigger-happy cops shooting away at the first opportunity just for the thrill of it. And, why in God's name would the authorities have released someone whose shoes tested positive for explosives?