"I Hope You Die" by Artican11 at Inkitt

Summary

P O S T M O R T E M R E P O R T Death by deep gashes, suspected from long claws or nails. Bite marks from canines of three inches deep. Strangulation marks from long fingers. No foreign DNA on any of the injury points. "Whatever it is...It's not human" Tokyo gets ridden with double homicides of bizarre and disturbing nature. Ikebukoro police opens files to figure this out.