A person was killed in a house party. When police arrives, there are six people present in the house who are the friends of the victim. The name of the friends are Rohit, Aman, Nick, Gagan and Randy.
Near the dead body, they find a few numbers written with blood by the victim on floor. The numbers are 8, 5, 4 and 11.
The police arrests one of the friends for the murder. Whom did they arrest and why?