Police, however, clarified that the patient is mentally unstable. In a complaint, his wife Pallavi said Venkatesh works as a computer operator at Ramoji Film City and had been under severe mental stress due to Rs 4 lakh pending money, which is under litigation. She said he had a history of abnormal behaviour even before their marriage 14 years ago and was treated at a hospital in Erragadda, Hyderabad.