Ha ha.
The killer has motivation, IQ, and action. And his negligence is basically reasonable. Unlike in "live free or die hard 4", the villain boss died very retarded and obviously unreasonable. Of course, the good guys beat the bad guys in the end of the film.
There seems to be a little connotation. It should reflect a little reflection on the invasion of people’s privacy by media networks. This is also the motive of the killer. The video of his father's suicide was broadcast overwhelmingly by the media, which finally triggered his revenge.
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