Bengaluru, July 8 -- The investigation into the sensational triple murder in Bengaluru's KR Puram, in which a couple allegedly murdered the woman's parents and younger sister, has gathered pace, with police planning to seek permission for a narco analysis test on the two accused.

According to investigators, the accused, Shwetha and Kenneth, have been giving contradictory versions during interrogation, making it difficult to establish the exact motive behind the murders. Police said the duo has repeatedly changed their statements, prompting investigators to consider scientific examination to verify their claims.

KR Puram police are now preparing to move the court seeking permission to conduct a narco analysis test. Under the procedure, i...