I am Cyclops. Σθ>
The Cyclops Serial Killer is an unknown killer who committed various murders between 2013 and 2019.
The original cyclops serial killer is the murderous duo of Saito Sejima and Rohan Kumakura. Saito would kill their victims and Rohan would remove their right eye for his own collection.
The new cyclops serial killer is just Saito Sejima. the left eyes are found removed from his victims as he must remove them in order to use the prototype Psync Machine in the Kabasaki Chemical Plant.
After Saito Sejima's murder of Manaka Iwai in 2001, Rohan Kumakura is called on to dispose of her body. Rohan removes her right eye as she is being buried in the Okutama Mountains.
Many years later Saito Sejima meets up with Rohan Kumakura and they decide to team up so that Saito can do killing and Rohan can collect eyeballs.
At one point Rohan sends a letter to the police to taunt them. He signs the letter Cyclops.
Rohan is forced to stop being the cyclops serial killer after he is made to switch bodies with Hayato Yagyu and is then sent to Fuchu Prison for Hayato's crimes.