After a few days of lull, the Maoists again went on the rampage in the district on Friday and abducted three residents from Kakurkanda village under the Mathili police station, suspecting them of being police informers.
On Sunday, they killed one villager and released the two others.
Sources said one Guja Kobasi was killed by the rebels while Soma Sori and Onga Kalamali were released by the Red rebels.
A group of around 20 armed Maoists barged into the village called the victims out of their house and abducted them on suspicion of being police informers.
The rebels killed Guja by slitting his throat and released two others after thrashing them severely.
Malkangiri SP Jagmohan Meena said already a probe has been initiated into the incident and combing operation was intensified in the area.