Listened this Tucker Carlson monologue:
https://yewtu.be/watch?v=WGGP_ypeibM
https://youtube.com/watch?v=WGGP_ypeibM [Embed]
The center of focus is the planned execution (by bullet) of the "Fort Hood shooter", specifically the plan of the DoW to livestream the act. (Msm says Trump cancelled it, so no public execution.)
I think it's worth a listen, he approaches the question and violence in general from a Christian perspective, I won't get into it deeper. But he talks about how watching violence, killings, desensitize people (same as porn just different area), which directly ties into this discussion here, and one of the points of LtCol. Grossman.
Grossman says that violence, specifically killing can be drilled into people. The revulsion and resistance can be broken down with conditioning and desensitization. All the violence we watch in movies, all the killings we do in video games normalizes violence and murder for us. And he says that the US doesn't have a gun problem, but a violence problem.