Yep, people die.
I'd not have wanted to be the one behind that long gun in the image.
Firearms are not toys and in the wrong hands can be devastating; I don't just mean by shootings and all, but stuff like over-pressure. I'm fortunate enough to know a few things after about 33 years of shooting so understand the dangers and how to mitigate them. Many do not...and video games and movies don't teach them.