The Rapid Action Battalion (RAB) has said Sadhurpara Union Parishad Chairman Mahmudul Alam Babu planned to attack Journalist Golam Rabbani Nadim to teach him a lesson.
RAB Legal and Media Wing Director Khandoker Al Moin told media on Saturday.
Nadim had recently reported on corruption and irregularities of Babu, which made him angry, Khandoker Al Moin said.
The RAB director also said that Nadim posted a status on the same day when the DSA case was dismissed against him.
This made Babu angrier, he added, reports banglanews24.com.
Meanwhile, Mahmudul Alam Babu, also general secretary of the union's Awami League in Bakshiganj upazila of Jamalpur, was detained from Deviganj Upazila in Panchagarh on Saturday morning.
Members of the Rapid Action Battalion (RAB) detained him from Char Tistapara of the upazila around 7 am.
Besides, two other accused were also detained with him.
Till now, a total of 12 people were arrested in connection to the alleged murder of Golam Rabbani Nadim.
Earlier in the day (June 17), a case was filed against Mahmudul Alam Babu, chairman of Sadhurpara Union Parishad, and 21 others over their alleged involvement in the killing of Golam Rabbani Nadim.
Nadim's wife Monira Begum filed the case with Bakshiganj Police Station this noon.
She mentioned the names of 22 individuals and 20-25 others as unknown assailants in the case.
Earlier, on Friday (June 16), chairman Babu was suspended from the Awami League for violating party discipline, according to party sources.
Chairman Babu went into hiding after the murder of Nadim.
Banglanews24.com Jamal district correspondent Golam Rabbany Nadim, 42, died on Thursday, a day after he was attacked allegedly by some supporters of a chairman Babu in Bakshiganj.
Bd-pratidin English/Golam Rosul