Rapid Action Battalion has arrested FIR accused Saidul Islam Alias Shaku, 45, in connection with the much talked about Mitu murder case. A murder case was filed by Mitu's wife of former SP Babul Akter father earlier today. Rab Hathazari Camp Commander Major Mushfiq told The Daily Star, "Rab men arrested Shaku from Ranirhat Bazar area of Rangunia upazila at around 10:00am