JMB killed at least 64 people including Rajshahi University teacher Prof Mohammad Yunus and two Jhalakathi judges, and carried out more than a thousand bomb attacks across the country between 2000 and 2005. The militant Islamic fundamentalist group killed at least 22 people in Rajshahai division alone, according to Rapid Action Battalion (Rab) and intelligence agencies. The identities of the people killed by JMB, ranges from common people to progressive teachers, intellectuals, judges, militant outlaws, religious persons and others, whomever it considered a barrier to establishing its Islamic state. The group killed its victims with bomb attacks, by slitting of throats and by indiscriminate beatings. There are several hundred victims of JMB's brutality, many of whom have become crippled due to physical torture.JMB also had a plan to kill Nobel Laureate Prof Muhammad Yunus. It made an attempt on the life of venerated academician, poet, novelist and essayist Prof Humayun Azad, injuring him severely. It carried out a countrywide series of near simultaneous bomb blasts on August 17, 2005. It also carried out bomb attacks on different courts in Chittagong, Lakshmipur, Gazipur and Chandpur, blasted bombs at cinema halls in Mymensingh and Satkhira, and at religious shrines in Joypurhat and Tangail.
It tried to thwart the people's secular cultural expressions by carrying out bomb attacks on Jatra (a form of traditional Bangla theatre) stages in Gaibandha, Bogra, Sherpur, Tangail and Rajshahi. JMB operatives looted offices of different NGOs including Brac and Grameen Bank.