A Lady named 'Himanshi' was found shot. Who was the killer ?

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Sherlock Detective reviewed the information they had on the case so far.
A lady named 'himanshi' was found shot and they already had a list of suspects - Ankit , Tarun, Harish, Manoj and Manish.
Killer is a fan of sherlock and chalenge him by leaving notes ad various places.
* The first was found in a toilet room.
* The second was found in an art room.
* The third was in a restroom.
* the fourth in an underwater room.
* The fifth at the No-Smoking room.
All of the notes read the same thing,
'The clues are where you find the notes.' Yet, nothing was found at anyplace the notes were.
Sherlock the genius , immediately solved the case.
Who was the killer ?

Click here for Answer

The Killer is TARUN

Logic :
The First Letter of every Room.
Toilet Room : T
Art Room : A
Restroom : R
Underwater Room : U
No-smoking Room : N
Hence TARUN