Ryohei Higashikata

Ryohei Higashikata (東方 良平) is a minor character from Part IV: Diamond is Unbreakable. He is the grandfather of Josuke, and the father of Tomoko Higashikata.

A respectable citizen serving as a police officer in Morioh-cho for 35 years, he is killed by Angelo's stand Aqua Necklace early on in the series. This causes Josuke to vow to rid the town of Morioh from evil stand users.

Synopsis
Ryohei is first revealed as a police officer passing by on a bike. A man reports to him that the woman walking away had just assaulted him after he had asked to give her a ride and demanded that she be arrested. Ryohei refuses and explains that the woman that the guy cussed out was actually his daughter, Tomoko. Ryohei disregards the man's request and goes to accompany Tomoko home.

The next day, Ryoehi returns home after working overnight and asks Josuke how was school. Josuke explains that he is waiting for somebody to come over soon and that Ryohei should go bother Tomoki instead. Josuke walks to the window to talk with Jotaro, but while doing so, Ryohei sees the bottle of wine that contained Aqua Necklace. He opens the bottle, causing Aqua necklace to escape and attack him. Turning around, Josuke finds Ryohei injured on the ground bleeding from his eyes and mouth. Josuke is able to heal his physical wounds, but realizes he is already dead.