Yoshikage Kira

Kira which sounds similar to Killer in Japanese the main antagonist of series 4 of JoJos Bizarre Adventure longs for a simple life and doesnt wish to be bothered. Although he reveals many talents this yearning shows in his dislike of coming in first as the cast eventually realizes. He becomes quite bothered when someone disrupts his simplicity and goes to extreme lengths to get it back. He keeps a collection of his own fingernail clippings and believes when they grow quickly he has trouble. Kira also has a bizarre fetish for the female hand stemming from an erotic fascination with the hands of the Mona Lisa. Unfortunately his desire has never extended to the rest of the female person. This results in his murdering women in order to acquire their severed hands as girlfriendswhen one girlfriend begins to decay he goes off in search of a replacement. Originally Kira murdered his victims by stabbing them so viciously they were left with horrific back wounds their hideous nature is implied by the fact that the reader is never actually shown Reimis wound. However his Stand Killer Queen eventually awoke from his desire to leave no evidence behind of his killingshence its ability to make its victims completely disintegrate. He now lets Killer Queen annihilate his victims except for his girlfriendhands letting everyone else think that the victims have simply gone missing. Even if the number of missing attracts attention as it eventually does no one would have any reason to suspect that Kira was involved. Source: Wikipedia