Risha Murder Mystery Puzzle

Problem Statement:

You are a famous Detective. This report has the information your department collected on the case so far.

A lady named 'Risha' was found shot, and here is the list of suspects: Rohan, Sandeep, Yuvraj, Gopal, and Pappu.

The killer is a psychopath and a die hard fan of Megamind. He challenged your department, by leaving notes at various places.
1. The first note was in her Garden.
2. The second note was on her Ornament.
3. The third one was in her Plate collection.
4. The fourth note was on her Ant painting.
5. The fifth note was on her Locket.

All these notes had the same sentence written on it " Find Me If You Can Detective muahahaha," 

Hint

Solution:-

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