GhaziabadThe Ghaziabad police is yet to track the son of 65-year-old Ishwar Tyagi who allegedly shot his father dead. Tyagi was found dead with a bullet injury to his head on Thursday morning at his Raj Nagar residence.After Sanjeev Tyagi, an IPS officer among the five siblings, reached Ghaziabad from Lucknow on Thursday afternoon, the family registered a police complaint against the victim’s younger son, Anuj alias Dabbu, and alleged that he had killed Tyagi. A case of murder was lodged against the accused at Kavi Nagar police station.“We have come to know through the CCTV footage that he left his father’s Raj Nagar residence and escaped in a Fortuner car around 4.45am on Thursday. He also left behind his mobile phone and did not take it along with him. The post-mortem examination report indicated a single gunshot injury to the head of the victim, possibly with .32 calibre weapon,” said Manish Mishra, circle officer (city).The police said that the licensed weapon of the victim is yet to be traced and suspect it was used in the incident. However, they said that the family will confirm whether the licensed weapon is missing or has been placed somewhere inside the residence.Sources said that Anuj had also withdrawn a large amount of money from the bank recently but the police said that it was done around April 25-26 and cannot be connected to the murder yet. The police are also finding it hard to trace the accused as he left behind his mobile home and has not been traceable through electronic surveillance methods.“We are yet to trace the accused and have pressed in three teams to pinpoint his whereabouts. The motive and the incident will be clear once the man is nabbed. Since he suffered from schizophrenia and was not taking medicines for past couple of days, we suspect that his mental condition could have triggered the attack,” Mishra said.The police said that Anuj had suffered a loss in a business he was a partner in, after which he was diagnosed with schizophrenia. He was undergoing treatment at Vimhans Hospital in Delhi. Anuj is fourth among five brothers and had been staying in Kavi Nagar. Sources said that he used to approach the residence often to meet his father. Sanjeev is presently posted with the cooperative cell in Lucknow.