I thought I was clear. Let be more clear. I frequently had lunch with this person. After the accident, he would remove his false teeth/dental bridge/whatever you call it while having lunch.
It's still an internet myth to you but I knew a victim of a Beretta 92F and I saw the damage.
You did repeat a myth in your post, that the slides are killing people. Three injured military personnel way back at the start of the M9 trials with a model that has since been fixed to address that very issue is not equivalent to an endemic problem of people being killed. Even if your own personal friend, using the same outdated model that isn't made any more, had to get reconstructive surgery afterwards, that doesn't imply anything about current guns which have had a design change, and doesn't even imply much about the myth that they are killing soldiers. If it didn't kill your friend, it probably didn't kill the soldiers, either. But there is no need to speculate, the incidents are actually recorded and one can actually find out the truth if they desire to.
I questioned whether it was your coworker or someone elses because you referred to his boss as if his boss was not someone you knew. You thought you were clear, but it was not clear to me. A lot of the times, when we hear that something happened to a friend of a friend of a friend, things aren't always as they have been told. It's a fairly rare occurrence for a 92 slide to break when shot by a civilian at all, because most civilians don't put enough rounds through their guns to see catastrophic failures.
As for catastrophic failures... Berettas are not the only guns that catastrophically fail. We've all read about Glocks and other polymer framed guns KB'ing. People have been injured by other guns catastrophically failing too. And many of these guns have a worse track record. But they didn't replace the 1911, so people don't see the need to point it out in every single conversation about the manufacturer.
Now, I'm not a blind defender of Beretta, but I believe that we ought to look at this from an objective perspective and stick to the facts. Yes it has flaws and so does the company and its history, but when you look at things in perspective the 92 doesn't really have such a bad track record. Even if one insists that every 92 is a bad gun, it should be argued to be a bad gun on the basis of fact. Hyperbole ought to be rejected.
Let's presume there is a major problem with all currently produced 92 variants... If everyone, out of fear of being criticized for pointing out the truth, refrained from correcting false and exaggerated statements, then people might dismiss whatever true problem exists because it is hidden in a pile of hyperbole.