What does it say that our first response to these now all-too-common massacres is that the perpetrator is a "madman?" How does that frame influence immediate news coverage? How does it portray the mentally ill? How does it ignore other issues, such as misogyny and objectification of women?
If The Rules built a better husband-catching mousetrap, then The Rules of the Game built a smarter, sleazier mouse. The end result is a lot of creepy, desperate people obsessing about playing mind games.