Police also seized two motorcycles, six cell phones, a sword, two axes and a bamboo stick from the accused persons who were arrested yesterday, said additional SP (Berhampur), Sashi Bhusan Satapathy.
The accused had allegedly killed Ganesh Panda (54), a trader and RTI activist, on December 29.
The accused were identified as Ajit Roul of Randha, Khallin Behera and Pradipta behera of Kanishi, Prasanta Sethi of Beherapur Sandeep Panda of Chhatrapur and Kalia Gouda of Bagahalati, police said.
Panda's brother, Rabindra, has alleged that Panda was killed for seeking information about road work through RTI.