I wasn&#x27;t talking about games being the desensitising factor. I&#x27;m an avid player of games myself, many of them very violent. More about a climate where mass killing is more visible and has less repercussions or damnation - e.g. war.<p>US has been in more wars as the aggressor than any other country I&#x27;d guess, over the past couple of generations. Perhaps that mass death and resulting inpunity for people at the top contributes to these teenagers&#x27; lack of appreciation of the horror in their actions?<p>I agree &#x27;conventionally disturbed&#x27; is a silly term. Hard to find one better; maybe, &#x27;absent of any identifiable mental disorder that would likely explain their murderous actions&#x27;?