MPD Psycho [Manga]

A mystery/murder/detective manga focused around Yôsuke Kobayashi, who is a detective with multiple personalities (including a female, a psychopath, himself and more) searching for a killer/s that commit graphic murders. During his searches, clues, like barcodes on the eyeballs of all the killers, pop up. Yosuke goes in search to discover the meaning and origin of all that is happening.