"A team of investigators has been sent to Uttar Pradesh's Deoria district in search of victim's another friend, Shanti Verma," said an officer.
Twenty-year-old Sumit Tiwari's body was found in his friend and scriptwriter Shanti Verma's rented house in Mandawali in east Delhi on Saturday evening. The body bore injury marks.
Police refused to divulge the names of the victim's two friends being questioned.
Tiwari was missing from his house in Karawalnagar in east Delhi since February 21.
His father lodged a complaint after receiving a ransom call for Rs2 lakh, police said.
Tiwari completed an acting course three months back at a private college in Noida. He was looking forward to become a model and TV actor, an officer said.