A case was filed against 133 people yesterday over the death of Awami League activist in a clash between party rival groups at Soyal village  in Jhenidah on Friday. Brother of the deceased Mir Akbar Hossain filed a murder case against 73 named and and 60 unidentified men with the Sadar Police Station for the death of Akamat Mir, 56. Sadar Police OC Hasan Hafizur Rahman said, after 36 hours of the murder, a case was filed.