Board Thread:Anime/Game Discussion/@comment-29981284-20161228210504/@comment-31598739-20170604152200

If you think about it, Diavolo stole the arrows from the excavation site and then gave 5 to Enya. This means that he is responsible for DIO acquiring a stand, and all the women he killed for blood, as well as placing Holly Joestar and Josuke Higashikata into fevers, which almost killed them. This means that Diavolo indirectly killed/almost killed many, many people from part 3 and 4.

Speaking of part 4, Keicho Nijimura got his arrow somehow from Enya and shot a bunch of people all around Morioh, who killed many people, including himself. Kira as well. When his father found the arrow and brought it all the way back to Morioh, he was shot and obtained Killer Queen. He killed many, many, many innocent people. This also means that Diavolo indirectly killed the innocent people Kira killed in part 4.

And let's not forget he did directly and indirectly kill multiple people in part 5. He sent Carne on a suicide mission, which didn't even succeed but did result in Carne's death. All of the people that were killed by Black Sabbath in the first trial, as well as bystanders outside of the trial, was because Diavolo approved and set up the trial. He killed Abbachio before he could find Diavolo's identity. He sent Oasis and Green Day after the group, resulting in Buccelati's death, as well as many of the people in the area. Diavolo killed Narancia without a word, in a painful way. So yeah, he killed a bunch from part 5 alone.

So if you ask me, I feel like he definitely deserves to experience death for many years before he can truly die, since his actions resulted in countless deaths spread across parts 3, 4, and 5.