An Islami Chhatra Shibir leader, who was arrested in Prof AFM Rezaul Karim Siddiquee murder case, died while undergoing treatment at a hospital in Rajshahi yesterday.

Four operatives of the banned militant outfit Jama'atul Mujahideen Bangladesh (JMB) took part in the killing of Rajshahi University teacher Prof AFM Rezaul Karim Siddiquee, police claimed.

Four days into the killing of Prof Rezaul Karim Siddiquee, the police yesterday said they got information that the teacher had incurred wrath of fanatics by setting up a music school at his village Dargamaria in Bagmara upazila.