Members of Detective Branch arrested a leader of Ansarullah Bangla Team (ABT) for his alleged involvement over the killing of publisher Foysal Arefin Dipon and blogger Niladri Chattopadhyay Niloy.Masudur Rahman, Deputy Commissioner of Media and Public Relations of Dhaka Metropolitan Police (DMP), said, police arrested a ABT leader from the capital on Friday night. He said that, they will disclose the identity of the detainee at a press conference which will be held at DMP. It is mentionable that, Foysal Arefin Dipon, publisher of Jagriti, was hacked to death in his office at Aziz Super Market in Shahbag on October 31, 2015.Earlier on August 7, blogger Niloy was killed in his rented residence in the capital’s Basabo.