I speak from the exact same ignorance as you do: You haven't seen the video material in question either. And I'm glad of it.

Nobody should be exposed to such unimaginably negative energy, you can't unsee it, and it periodically replays over and over in the mind forever, opening the gate to more evil thoughts. That occurred when I happened to see a tiny five-second hideous revolting soul-eating clip of children immediately following abuse.

Beyond the cause of death of those who viewed the material (murder by paid assassin vs. by self), I have no issue with the accuracy of your comment anon.

I just believe cops especially in NYPD see so much shit every day, they necessarily develop methods of compartmentalizing. Those techniques help shield their sanity and humanity. They aren't perfect armor. But, along with the instinctive drive to survive, they help protect against going so far as committing suicide after having an intensely negative, inhuman audio/video experience that might wreck folks like me and most others who are without such mental defenses.