Probe committee chief and Local Government Division Deputy Director Mamudur Rahman submitted the report to deputy commissioner Mohammd Musud Alam Siddique on Friday night.
Meanwhile, Bhola-2 Constituency MP Ali Azam Mukul handed over cash TK 5 lakh to the families each four victims on Saturday.
Four people were killed and more than 200 others injured on October 20 in a clash between police and demonstrating locals who were demanding punishment of a youth in Borhanuddin upazila for allegedly hurting religious sentiments on Facebook.
Police and locals said messages containing derogatory remarks about Allah and Prophet Muhammad were sent to several persons from the Facebook ID of Biplob Chandra Shuvo. Screenshots of the messages went viral on Facebook, triggering condemnation and protests.