The CBI, probing the Kunda triple murder case, released sketches of "sharpshooters" who had allegedly killed Nanhe Yadav, village head of Balipur, on Friday.
Based on the information of an eyewitness identified as Chokehlal and some others, the agency issued the sketches, sources in the CBI said.
On March 2, Yadav was standing at a tea stall in Balipur village when some unknown assailants shot him dead.
After the murder of Yadav, the circle officer of Kunda, Zia-ul-Haque, who had rushed to Balipur village to control the situation, was allegedly killed by some people while the body of Yadav's brother Suresh was also recovered from the spot.
On the complaint of the slain police officer's wife, a case was lodged against the then UP minister Raghuraj Pratap Singh alias Raja Bhaiya, who had subsequently resigned from the ministry.
While two FIRs pertain to the killing of Nanhe Yadav and his brother Suresh, the two others are about the DSP's killing and the rioting in the area.
The case was later handed over to the CBI.
Two main accused in the murder of Nanhe Yadav had surrendered before the CBI on March 16.
Kamta Prasad Pal and his son Ajay Kumar Pal, named in an FIR, had surrendered before the agency at their camp office in Kunda. Same day service revolver of the slain police officer was also recovered.