New Delhi, Feb. 26 -- Kolkata Police have denied involvement of any "outsider" in the murder of two women and a teenage girl, all of whom were from the same family, and said two brothers from that family were "solely responsible" for the killings.

Police commissioner Manoj Verma stated the motive of the murders is "something related to their business."

"We are pretty sure the brothers are behind the crime and there is no involvement of any outsider. They have told us how the entire incident took place. But we need expert opinions to verify and confirm that. At this stage, we are not saying what specific roles they played," Verma told news agency PTI.

"They will face legal action," he added.

Further, the officer said the men - Pranay a...