There is no evidence of this, no reproduction of it firing without the trigger being pulled, and not even a good theory on it. The YouTube videos are involve pulling the trigger far enough to disengage the internal safeties.
I 100% agree it is concerning, but in this video you can't see whether the trigger is pulled or not. Holstering the gun creates a risk of the trigger being pulled. The gun goes off while it is being pushed in, which suggests the trigger is catching on something.
If the gun was able to fire by itself, without the trigger being actuated, then someone should make it happen on video. Shake the crap out of it, bang on it. Take it in and out of a clear plastic holster 1000 times until the supposed defect happens.
It goes off as the holster he bends over and bumps into the officer next to him. The holster is clearly being moved and touched.
Regardless, if there is a defect in that particular gun, they should just demonstrate it. If it isn't the holster, or something in the holster pulling the trigger, make it happen outside the holster.
