I had that exact conversation with my wife earlier.
She said “why has he got that type of gun” but like I said to her, we can’t think about guns in America in our terms.
Guns in America are as normal as mobile phones, it’s just not considered an issue.
As I also said to her, would it have been more acceptable if he had taken a hammer and killed then with that ?
AR15’s can be purchased in ASDA in the US!!
Just like we can purchase a hammer.
Lastly I said to her, “If a group of people was breaking in our house would you rather I had an AR15 or a hammer ?”