Internet Trolls

The Internet Trolls is a large group of people from 2channel who got killed by Hiro Shishigami after having heinous comments and conversations about his mother's death.

Plot
After Hiro Shishigami’s mother committed suicide, Shishigami went on a crusade trying to track down the ones that had exposed him and his mother. Hiro found out that members of the 2channel forum had been mocking his mother for her death.

Shishigami posted on 2chan that he will kill them all. He then tracked down the main facilitator Susumu Iwata and tortured him via his computer screen. He then killed him and posted the video of his death on 2chan and promised to kill the rest of them.

One by one, he hacked the various devices of the 2chan members and appeared on their screens via video chat. He then shot and killed them all through their phones and devices. Many of their real faces are shown: a few business men, shut-ins like Susumu Iwata, Otakus, a schoolboy, and some random everyday citizens.

One by one they either collapsed on the street, or slumped over in their seats dead from being shot in the head. All the 2chan members mocked Shishigami believing it was impossible for him to kill them but they all died before they could blink. In the end Shishigami got his revenge on the 2chan members.