A person named Ajeet was murdered by someone at his work place.

A nice detective the famous one named PAPA worked on this case and he summarized and found three SUSPECTS.

1. His brother Mr John Paul
2. His Secretary "Jason Kumar"
3. Wife of Ajeet "Janet"

All the three suspects went to meet Ajeet on the day of his murder for some reason they told to the detective PAPA!

Police could not solve the case, so PAPA did
There was also a note on his office desk on which it was written "7B91011"

When PAPA saw the note he in seconds told who was the murderer!
Who was the murdered?

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HINT: So its very easy riddle!

Happy Riddling!