WHO...!?

'Who' is the most common word for everyone, used almost daily by the people. And there's nothing special about it .......... but what if the most common and usual word 'who' makes people sleepless. Just by hearing this word fear run down their spine. Ever wondered....!? Let's take a dive into it.

Frequent murders with no clue in the city, sounds pretty serious ...... but what if I tell you it's happening in different cities and the number of people getting killed is quite to think about. How can it be just like that only. Who is the person killing people leaving no clue behind ............ except the word 'who'.
The only clue found by the police, or we should say intentionally left, in many months is just a word 'who' written by the murderer and left beside the dead body.

Will this mysterious case be solved or people are going to have continuous sleepless nights in the fear of getting murdered by God knows 'WHO'

And who's really the murderer with what intentions and reasons....!?