PATNA: Police probing the murder of prominent businessman Gopal Khemka here have identified the shooter and tracked his escape route, inspector general of police (IGP) Jitendra Rana said on Sunday. He said all possible angles were being investigated, including possible links to an inmate at Beur jail.“The involvement of a notorious gangster in the killing is being suspected. A land-related dispute has also come to light. Besides, we are also probing connection with the murder of Gunjan Khemka (Gopal’s son) who was shot outside his factory in Hajipur in 2018,” the IGP said. Police have detained several suspects in the district. Authorities also conducted a raid on the jail on Saturday.“The raid was carried out due to suspected links in the Khemka murder case. Some mobile handsets, SIMs, and other items were seizd from the jail. Some inmates were also interrogated,” Singh told TOI.This prompted authorities to suspend three jail warders and issue show-cause notices to deputy superintendent Ajay Kumar, assistant superintendent Niraj Kumar Rajak, and section-in-charge Girish Yadav.