5 Friends ...

5 friends lived in a room. Their names are Mad, Fool, Brain, Somebody and Nobody.
One day, Somebody killed Nobody.
That time, Brain was in the Bath room.
Mad called police.
Mad > Is it police station?
Police > Yes, what is matter?
Mad > Somebody killed Nobody!
Police > Are you Mad?
Mad > Yes, I'm Mad.
Police > Dont you have Brain?
Mad > Brain is in Bath room.
Police > U Fool.
Mad > No, Fool is reading this message.