Chandigarh, Dec. 11 -- In a fresh development in the four-year-old murder case of Panjab University professor's wife, Seema Goyal, investigators say that accused husband professor BB Goyal remained largely "deceptive" in the police custody, offering minimal cooperation and avoiding direct responses to key questions related to the crime scene and the circumstances in which his wife was found dead. The three day remand ends on Thursday.

Senior officers said that despite sustained interrogation, Goyal "did not cooperate" and continued to vary his statements. His Brain Electrical Oscillation Signature (BEOS) profiling had earlier hinted at experiential knowledge of the crime, including an underlying domestic dispute, which strengthened polic...