India, Aug. 17 -- Nearly six weeks after a beheaded body with hands tied in the back was found in the Aravalli hills of Sohna, police on Friday said the killing was the result of a year-long revenge plot by Sonu, the brother-in-law of the deceased Sameer.

Officials said the blind murder was cracked only after forensic analysis of fingerprints of the deceased, when matched from a pan-India database of arrested persons, gave a probable match with a suspect nabbed by Rishikesh police 1.5 years back in a elopement case, leading to ascertaining the identity of the body and the arrest of four suspects, while the prime accused Sonu remains at large.

Investigators said Sameer, originally from Katghara Shankar village in Mau, Uttar Pradesh, was ...