He said MP Additional Principle Chief Conservator of Forest (PCCF) Dharmendra Negi is investigating the case even as various theories for death of the ten-year-old feline on May 19 in the Tala Range of the reserve are doing rounds. Meanwhile Reserve Field Director C.K. Patil has demanded a CID or CBI inquiry into the incident. "Patil has written to the State Chief Wildlife Warden R.S. Negi with such a request," the official said.