BAM! The gun went off as one of the kids pulled the trigger.
Not quite, Mike! The incident occurred in Germantown, PA, on Feb 6th, and the only one touching the Glock when it fired was... the police officer!
The female police officer removed the magazine from her Glock, then let the 4th grade school children pass it around to look at it. When SHE put the magazine back in, there was an "accidental" discharge, and a fragment grazed one of the students after the round struck the floor.
One of the students is pretty smart. She said the police officer pulled the trigger. Even that 9 year old girl knew that it takes pulling the trigger for the Glock to go off.
The "adult" in charge, a 39 year old police officer, was neither "skilled" nor "knowing" about the safe handling of firearms. Even the kids knew enough not to pull the trigger as the pistol was being passed around.
Despite the newspaper stories, I'm not convinced that the police officer didn't clear the weapon before passing it around. I have a hard time believing even that ditz didn't know to clear the chamber before relinquishing control of the pistol to the children. I'd guess that it's a sure thing that at least one of the 23 children would have pulled the trigger! Furthermore, inserting a magazine isn't an event likely to cause an idiot whose finger is on the trigger to pull it. However, racking the slide could be. However, this whole incident indicates that none of the brains in the room were more than 9-10 years old. What unspeakable incompetence!