@Ralph Is it the case that your personal/business conflict with Narges and her fiancée is somehow related to this whole event? In this case, it is a question of clarifying why Narges was murdered. I hope that you have clearly communicated to the police your story of what you wrote here about your concerns about the murder. I assume that you too, although you feel deceived by Narges, want this murder case to be properly resolved and the guilty to be brought to justice.