MANSEHRA  - Police on Monday claimed to have arrested four suspects accused of killing three brothers of a boy who appeared in a dancing video in Kohistan.DIG Hazara Division claimed that the four accused one of them identified as Moulvi Javed were arrested during police raids in different parts of the region.The Supreme Court of Pakistan had taken suo motu action after reports about the killing of girls clapping in a video of a wedding ceremony that made headlines in the national media May last year.