CBI teams on Friday launched an operation to look for Mohammed Javed, another suspect in the murder of Siwan-based journalist Rajdeo Ranjan on May 13 this year.
Prime suspect Mohammed Kaif is in judicial custody after he surrendered in a Siwan court on September 21.
The agency which started probe last week has set up a camp office in Siwan where relatives of Javed were called to locate the alleged sharp shooter, agency sources said.