Last week, a 17-year-old girl was killed by her husband in Iran. A gruesome video showing the alleged killer holding a knife in one hand and his wife's head in the other went viral before being taken down. The victim was married when she was just 12 years old and had a son. Her name was Mona and she had reportedly fled to Turkey for four months before being persuaded by her father to return. Police have arrested the alleged killer and his brother, who is suspected of helping him carry the so-called honour killing that's shocked the country. For more on this story, we speak to Asieh Amini, an Iranian social analyst based in Norway.