Cumill, July 4 -- Rapid Action Battalion (Rab) arrested the prime suspect of orchestrating the mob assault, filming and online viral of a video that shows a woman being raped and tortured in Cumilla's Muradnagar upazila.

Md Shah Poran, 28, was picked up from the Kabila Bazar area of Burichang upazila around noon on Thursday , Rab-11 Commanding Officer Lt Col HM Sajjad Hossain disclosed durning a briefing at the Rab Media Centre in the capital on Friday.

A mobile phone, believed to be used to spread the footage, was also seized from his possession , he added.

According to Rab, Shah Poran masterminded the June 26 assault to avenge an earlier public humiliation by his elder brother Fozor Ali.

Quoting locals, Rab said the brothers had qua...