This Is A Funny Crime Story

This is a funny crime story:
five friends lived in a room.
mad
brain
nobody
fool
somebody.
one day somebody killed nobody. at that time brain was in bathroom. mad called police.
mad:hello police! somebody has killed nobody.
policeman: r u mad?
mad: yes i m mad.
policeman: you fool?
mad: no sir i m mad actually fool is busy in reading sms.