It is possible that Dr. Rajesh Talwar may have admitted his involvement in killings during police investigation, knowing that it cannot be admitted in court. Only after his lawyer came into picture did denial drama started. Police officials are not fools to come up with some story - there cannot be smoke without fire. If the initial reports are true, why did he call his lawyer and inquired of getting anticipatory bail, even before he was named as suspect. Why did he initially refused to identify Hemaraj's body? Many similar questions point out strongly to his involvement - his involvement may be active or passive, direct or indirect.