If he took it off safety, and pulled the trigger, Boom!
Might have been a clue that the gun was cocked and locked because he couldn't pull the slide back.
I don't think that's how it went down. He just thought it was empty, and pulled the trigger.
But again, if the safety was on, the trigger would not have fired the gun.
And again, if he took off the safety to pull the slide back the exact same type of AD could have happened with the Colt as happened with the Glock.
Person's fault, not the guns fault.
The dummy never should have had a loaded gun in an airport anyway.
The real point is, if you have the safety on on a 1911, it won't go boom accidently by pulling the trigger.
If it is not on, well, kaboom!
But the Glock, in the same condition, with about the same trigger pull, will absolutely go kaboom! And there is no safety!