UNB, Dhaka : A police investigation report submitted to the Speedy Trial Tribunal-4 on Monday claimed that the allegation of the assault and threat of murder on two Jahangirnagar University (JU) students by six of the accused killers of Zubair Ahmed, a student of English department of the university, was found authentic. It’s true that among the 13 accused in the Zubair murder case, six were found out to be involved in a physical assault on JU students Razibul Islam and Nazmul Hossain near the Dhaka District Court premises after they had appeared before the tribunal on January 19, said the investigation report conducted by Kotwali Police Station sub-inspector Rafiqul Islam based on a general diary (GD) by the assaulted. The GD included the names of accused killers Khandker Ashiqul Islam Ashiq, Khan Mohammad Rais, Zahid Hasan, Mahbub Akram, Nazmus Sakib Topu and Ishtiaque Mehbub Arup. All the 13 accused-expelled BCL activists of the university-are currently on bail and reportedly enjoying favour from the JU administration. Earlier, during the trial on Zubair murder case on January 23, Public Prosecutor FM Rafiqul Islam, submitted a plea seeking to revoke the bail granted them earlier as they have been flexing muscles. The tribunal after hearing the plea ordered the police station concerned to undertake an investigation into the incident of the reported physical assault. SI Rafiqul Islam visited the university and quizzed two of the witnesses-JU security officer Azim Uddin and microbus driver Mohammad Ainal-of the assault mentioned in the GD. The investigation report also mentioned that the six accused offenders reportedly gave threats of ‘further killing’ the two men during the assault. “The assaulters threatened to kill more if they are sentenced to death (for Zubair murder),” said the report. PP Rafiqul Islam told UNB that the tribunal on Wednesday set February 2 for hearing the plea seeking the cancellation of the accused killers. The court allowed them conditional bail which has already been violated by the assault and threat, said the PP. Meanwhile, Chief Judicial Magistrate Court’s Senior Judicial Magistrate Kazi Shahidul Islam who took the confessional statements of two of the accused killers-Mahbub Akram and Nazmus Sakib Tapu — appeared before the tribunal on Wednesday as a defense witness.