According to the police, the boys strangled the victim, smashed his head with a stone, and slit his throat with a knife. They, then, stuffed the body in a polythene bag.
The deceased, Md Al Jamiul Boni, 22, achieved a Guinness world record for an official attempt for most users to complete a remote 10km in 24 hours on September 29, 2021.
He first demanded a ransom of three lakhs and later fearing identification, buried the girl behind the house. A team of two doctors handed over the dead body to the relatives after conducting a post-mortem.