In his confessional statements, Mayna Chokidar claimed three miscreants- Kmarul Islam, his brother Muhid and one Pavel- were involved in the killing mission on the day.
Mayna, however, has refused his involvement in the killing.
The alleged killer gave his statement before the court of Judge Anwarul Haque in the city.
Detective Branch sources confirmed his statement on the day.
Earlier on July 13, Kamrul Islam, prime accused in the murder case, has been detained from Jeddah, four days after the gruesome killing.
The Bangladeshi expatriates in Saudi Arabia have detained Kamrul Islam and handed over them to the Saudi police on the day.
In allegation of stealing, another killer Muhid Alam and his associates picked up Rajon on July 8 (Wednesday) and beaten the ill-fated 13-year-old boy to death